31164502532 has 12 divisors (see below), whose sum is σ = 54839194956. Its totient is φ = 15496161120.

The previous prime is 31164502529. The next prime is 31164502553. The reversal of 31164502532 is 23520546113.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11358443776 + 19806058756 = 106576^2 + 140734^2 .

It is a super-2 number, since 2×31164502532² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21521723 + ... + 21523170.

It is an arithmetic number, because the mean of its divisors is an integer number (4569932913).

Almost surely, 2^31164502532 is an apocalyptic number.

It is an amenable number.

31164502532 is a deficient number, since it is larger than the sum of its proper divisors (23674692424).

31164502532 is a wasteful number, since it uses less digits than its factorization.

31164502532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43045078 (or 43045076 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 31164502532 in words is "thirty-one billion, one hundred sixty-four million, five hundred two thousand, five hundred thirty-two".