252315018 has 12 divisors (see below), whose sum is σ = 546682578. Its totient is φ = 84105000.

The previous prime is 252315017. The next prime is 252315023. The reversal of 252315018 is 810513252.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 245329569 + 6985449 = 15663^2 + 2643^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 252314982 and 252315000.

It is not an unprimeable number, because it can be changed into a prime (252315017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7008733 + ... + 7008768.

Almost surely, 2^252315018 is an apocalyptic number.

252315018 is an abundant number, since it is smaller than the sum of its proper divisors (294367560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252315018 is a wasteful number, since it uses less digits than its factorization.

252315018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14017509 (or 14017506 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 252315018 is about 15884.4269018432. The cubic root of 252315018 is about 631.8990468590.

The spelling of 252315018 in words is "two hundred fifty-two million, three hundred fifteen thousand, eighteen".