312913232 has 20 divisors (see below), whose sum is σ = 606800820. Its totient is φ = 156319488.

The previous prime is 312913213. The next prime is 312913241. The reversal of 312913232 is 232319213.

It can be written as a sum of positive squares in 2 ways, for example, as 288864016 + 24049216 = 16996^2 + 4904^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11708 + ... + 27620.

It is an arithmetic number, because the mean of its divisors is an integer number (30340041).

Almost surely, 2^312913232 is an apocalyptic number.

It is an amenable number.

312913232 is a deficient number, since it is larger than the sum of its proper divisors (293887588).

312913232 is a wasteful number, since it uses less digits than its factorization.

312913232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17150 (or 17144 counting only the distinct ones).

The product of its digits is 1944, while the sum is 26.

The square root of 312913232 is about 17689.3536343191. The cubic root of 312913232 is about 678.9033881931.

It can be divided in two parts, 3129 and 13232, that added together give a palindrome (16361).

The spelling of 312913232 in words is "three hundred twelve million, nine hundred thirteen thousand, two hundred thirty-two".