252132918 has 16 divisors (see below), whose sum is σ = 510342336. Its totient is φ = 83031560.

The previous prime is 252132917. The next prime is 252132929. The reversal of 252132918 is 819231252.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252132913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252648 + ... + 253643.

It is an arithmetic number, because the mean of its divisors is an integer number (31896396).

Almost surely, 2^252132918 is an apocalyptic number.

252132918 is an abundant number, since it is smaller than the sum of its proper divisors (258209418).

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

252132918 is a wasteful number, since it uses less digits than its factorization.

252132918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506379.

The product of its digits is 8640, while the sum is 33.

The square root of 252132918 is about 15878.6938379704. The cubic root of 252132918 is about 631.7469928767.

The spelling of 252132918 in words is "two hundred fifty-two million, one hundred thirty-two thousand, nine hundred eighteen".