312513422 has 32 divisors (see below), whose sum is σ = 520544640. Its totient is φ = 139799520.

The previous prime is 312513391. The next prime is 312513451. The reversal of 312513422 is 224315213.

312513422 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154397 + ... + 156407.

It is an arithmetic number, because the mean of its divisors is an integer number (16267020).

Almost surely, 2^312513422 is an apocalyptic number.

312513422 is a deficient number, since it is larger than the sum of its proper divisors (208031218).

312513422 is a wasteful number, since it uses less digits than its factorization.

312513422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2208.

The product of its digits is 1440, while the sum is 23.

The square root of 312513422 is about 17678.0491570761. The cubic root of 312513422 is about 678.6141194532.

Adding to 312513422 its reverse (224315213), we get a palindrome (536828635).

The spelling of 312513422 in words is "three hundred twelve million, five hundred thirteen thousand, four hundred twenty-two".