312521427 has 12 divisors (see below), whose sum is σ = 455640120. Its totient is φ = 206399808.

The previous prime is 312521413. The next prime is 312521431. The reversal of 312521427 is 724125213.

It is not a de Polignac number, because 312521427 - 2²⁰ = 311472851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312521427.

It is not an unprimeable number, because it can be changed into a prime (312521437) 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 11 ways as a sum of consecutive naturals, for example, 161302 + ... + 163227.

It is an arithmetic number, because the mean of its divisors is an integer number (37970010).

Almost surely, 2^312521427 is an apocalyptic number.

312521427 is a deficient number, since it is larger than the sum of its proper divisors (143118693).

312521427 is a wasteful number, since it uses less digits than its factorization.

312521427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324642 (or 324639 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 312521427 is about 17678.2755663554. The cubic root of 312521427 is about 678.6199136146.

The spelling of 312521427 in words is "three hundred twelve million, five hundred twenty-one thousand, four hundred twenty-seven".