513312045 has 32 divisors (see below), whose sum is σ = 858470400. Its totient is φ = 261417024.

The previous prime is 513312017. The next prime is 513312053. The reversal of 513312045 is 540213315.

It is not a de Polignac number, because 513312045 - 2⁵ = 513312013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 316246 + ... + 317864.

It is an arithmetic number, because the mean of its divisors is an integer number (26827200).

Almost surely, 2^513312045 is an apocalyptic number.

It is an amenable number.

513312045 is a deficient number, since it is larger than the sum of its proper divisors (345158355).

513312045 is a wasteful number, since it uses less digits than its factorization.

513312045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 513312045 is about 22656.3908202520. The cubic root of 513312045 is about 800.6827738798.

The spelling of 513312045 in words is "five hundred thirteen million, three hundred twelve thousand, forty-five".