252137694 has 16 divisors (see below), whose sum is σ = 520542720. Its totient is φ = 81334680.

The previous prime is 252137653. The next prime is 252137701. The reversal of 252137694 is 496731252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677604 + ... + 677975.

It is an arithmetic number, because the mean of its divisors is an integer number (32533920).

Almost surely, 2^252137694 is an apocalyptic number.

252137694 is an abundant number, since it is smaller than the sum of its proper divisors (268405026).

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

252137694 is a wasteful number, since it uses less digits than its factorization.

252137694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355615.

The product of its digits is 90720, while the sum is 39.

The square root of 252137694 is about 15878.8442274619. The cubic root of 252137694 is about 631.7509817841.

The spelling of 252137694 in words is "two hundred fifty-two million, one hundred thirty-seven thousand, six hundred ninety-four".