513112638 has 8 divisors (see below), whose sum is σ = 1026225288. Its totient is φ = 171037544.

The previous prime is 513112627. The next prime is 513112657. The reversal of 513112638 is 836211315.

It is a sphenic number, since it is the product of 3 distinct primes.

513112638 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42759381 + ... + 42759392.

It is an arithmetic number, because the mean of its divisors is an integer number (128278161).

Almost surely, 2^513112638 is an apocalyptic number.

513112638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513112638 is a wasteful number, since it uses less digits than its factorization.

513112638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85518778.

The product of its digits is 4320, while the sum is 30.

The square root of 513112638 is about 22651.9897139302. The cubic root of 513112638 is about 800.5790796906.

The spelling of 513112638 in words is "five hundred thirteen million, one hundred twelve thousand, six hundred thirty-eight".