507129613 has 8 divisors (see below), whose sum is σ = 515066936. Its totient is φ = 499219200.

The previous prime is 507129611. The next prime is 507129629. The reversal of 507129613 is 316921705.

It can be written as a sum of positive squares in 4 ways, for example, as 62678889 + 444450724 = 7917^2 + 21082^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 507129613 - 2¹ = 507129611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (507129611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33073 + ... + 45913.

It is an arithmetic number, because the mean of its divisors is an integer number (64383367).

Almost surely, 2^507129613 is an apocalyptic number.

It is an amenable number.

507129613 is a deficient number, since it is larger than the sum of its proper divisors (7937323).

507129613 is a wasteful number, since it uses less digits than its factorization.

507129613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13455.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 507129613 is about 22519.5384721801. The cubic root of 507129613 is about 797.4552540219.

The spelling of 507129613 in words is "five hundred seven million, one hundred twenty-nine thousand, six hundred thirteen".