It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 167 542 is not a prime number.
For example, 167 542 can be divided by 2: 167 542 / 2 = 83 771.
For 167 542 to be a prime number, it would have been required that 167 542 has only two divisors, i.e., itself and 1.
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167 542 is an even number, because it is evenly divisible by 2: 167 542 / 2 = 83 771.
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A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 167 542 is about 409.319.
Thus, the square root of 167 542 is not an integer, and therefore 167 542 is not a square number.
The square of a number (here 167 542) is the result of the product of this number (167 542) by itself (i.e., 167 542 × 167 542); the square of 167 542 is sometimes called "raising 167 542 to the power 2", or "167 542 squared".
The square of 167 542 is 28 070 321 764 because 167 542 × 167 542 = 167 5422 = 28 070 321 764.
As a consequence, 167 542 is the square root of 28 070 321 764.
The multiples of 167 542 are all integers evenly divisible by 167 542, that is all numbers such that the remainder of the division by 167 542 is zero. There are infinitely many multiples of 167 542. The smallest multiples of 167 542 are: