It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 509 162 is not a prime number.
For example, 509 162 can be divided by 2: 509 162 / 2 = 254 581.
For 509 162 to be a prime number, it would have been required that 509 162 has only two divisors, i.e., itself and 1.
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509 162 is an even number, because it is evenly divisible by 2: 509 162 / 2 = 254 581.
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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 509 162 is about 713.556.
Thus, the square root of 509 162 is not an integer, and therefore 509 162 is not a square number.
The square of a number (here 509 162) is the result of the product of this number (509 162) by itself (i.e., 509 162 × 509 162); the square of 509 162 is sometimes called "raising 509 162 to the power 2", or "509 162 squared".
The square of 509 162 is 259 245 942 244 because 509 162 × 509 162 = 509 1622 = 259 245 942 244.
As a consequence, 509 162 is the square root of 259 245 942 244.
The multiples of 509 162 are all integers evenly divisible by 509 162, that is all numbers such that the remainder of the division by 509 162 is zero. There are infinitely many multiples of 509 162. The smallest multiples of 509 162 are: