512312913 has 24 divisors (see below), whose sum is σ = 873007616. Its totient is φ = 283305600.

The previous prime is 512312909. The next prime is 512312923. The reversal of 512312913 is 319213215.

It is not a de Polignac number, because 512312913 - 2² = 512312909 is a prime.

It is not an unprimeable number, because it can be changed into a prime (512312923) 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 23 ways as a sum of consecutive naturals, for example, 129208 + ... + 133113.

Almost surely, 2^512312913 is an apocalyptic number.

It is an amenable number.

512312913 is a deficient number, since it is larger than the sum of its proper divisors (360694703).

512312913 is a wasteful number, since it uses less digits than its factorization.

512312913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262365 (or 262362 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 512312913 is about 22634.3304075910. The cubic root of 512312913 is about 800.1629423308.

The spelling of 512312913 in words is "five hundred twelve million, three hundred twelve thousand, nine hundred thirteen".