312817612 has 12 divisors (see below), whose sum is σ = 579632760. Its totient is φ = 147208256.

The previous prime is 312817597. The next prime is 312817613. The reversal of 312817612 is 216718213.

It is not an unprimeable number, because it can be changed into a prime (312817613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2300062 + ... + 2300197.

It is an arithmetic number, because the mean of its divisors is an integer number (48302730).

Almost surely, 2^312817612 is an apocalyptic number.

It is an amenable number.

312817612 is a deficient number, since it is larger than the sum of its proper divisors (266815148).

312817612 is a wasteful number, since it uses less digits than its factorization.

312817612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4600280 (or 4600278 counting only the distinct ones).

The product of its digits is 4032, while the sum is 31.

The square root of 312817612 is about 17686.6506721878. The cubic root of 312817612 is about 678.8342280673.

The spelling of 312817612 in words is "three hundred twelve million, eight hundred seventeen thousand, six hundred twelve".