31972252 has 12 divisors (see below), whose sum is σ = 60255496. Its totient is φ = 14756400.

The previous prime is 31972229. The next prime is 31972273. The reversal of 31972252 is 25227913.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307374 + ... + 307477.

Almost surely, 2^31972252 is an apocalyptic number.

It is an amenable number.

31972252 is a deficient number, since it is larger than the sum of its proper divisors (28283244).

31972252 is a wasteful number, since it uses less digits than its factorization.

31972252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614868 (or 614866 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 31972252 is about 5654.4011177135. The cubic root of 31972252 is about 317.3884188478.

The spelling of 31972252 in words is "thirty-one million, nine hundred seventy-two thousand, two hundred fifty-two".