512168913 has 24 divisors (see below), whose sum is σ = 793665600. Its totient is φ = 329667408.

The previous prime is 512168903. The next prime is 512168927. The reversal of 512168913 is 319861215.

It is not a de Polignac number, because 512168913 - 2¹³ = 512160721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (512168903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29293 + ... + 43386.

It is an arithmetic number, because the mean of its divisors is an integer number (33069400).

Almost surely, 2^512168913 is an apocalyptic number.

It is an amenable number.

512168913 is a deficient number, since it is larger than the sum of its proper divisors (281496687).

512168913 is an equidigital number, since it uses as much as digits as its factorization.

512168913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72723 (or 72711 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 512168913 is about 22631.1491754175. The cubic root of 512168913 is about 800.0879658480.

The spelling of 512168913 in words is "five hundred twelve million, one hundred sixty-eight thousand, nine hundred thirteen".