312718512 has 20 divisors (see below), whose sum is σ = 807856280. Its totient is φ = 104239488.

The previous prime is 312718501. The next prime is 312718517. The reversal of 312718512 is 215817213.

It is a self number, because there is not a number n which added to its sum of digits gives 312718512.

It is not an unprimeable number, because it can be changed into a prime (312718517) by changing a digit.

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, 3257437 + ... + 3257532.

It is an arithmetic number, because the mean of its divisors is an integer number (40392814).

Almost surely, 2^312718512 is an apocalyptic number.

It is an amenable number.

312718512 is an abundant number, since it is smaller than the sum of its proper divisors (495137768).

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

312718512 is a wasteful number, since it uses less digits than its factorization.

312718512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6514980 (or 6514974 counting only the distinct ones).

The product of its digits is 3360, while the sum is 30.

The square root of 312718512 is about 17683.8489023176. The cubic root of 312718512 is about 678.7625360497.

The spelling of 312718512 in words is "three hundred twelve million, seven hundred eighteen thousand, five hundred twelve".