312975128 has 8 divisors (see below), whose sum is σ = 586828380. Its totient is φ = 156487560.

The previous prime is 312975127. The next prime is 312975167. The reversal of 312975128 is 821579213.

312975128 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 312975091 and 312975100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312975121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19560938 + ... + 19560953.

Almost surely, 2^312975128 is an apocalyptic number.

It is an amenable number.

312975128 is a deficient number, since it is larger than the sum of its proper divisors (273853252).

312975128 is a wasteful number, since it uses less digits than its factorization.

312975128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39121897 (or 39121893 counting only the distinct ones).

The product of its digits is 30240, while the sum is 38.

The square root of 312975128 is about 17691.1030747096. The cubic root of 312975128 is about 678.9481488802.

The spelling of 312975128 in words is "three hundred twelve million, nine hundred seventy-five thousand, one hundred twenty-eight".