512401613 has 8 divisors (see below), whose sum is σ = 538272000. Its totient is φ = 486830608.

The previous prime is 512401601. The next prime is 512401639. The reversal of 512401613 is 316104215.

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 512401613 - 2¹² = 512397517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512401013) 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, 71333 + ... + 78186.

It is an arithmetic number, because the mean of its divisors is an integer number (67284000).

Almost surely, 2^512401613 is an apocalyptic number.

It is an amenable number.

512401613 is a deficient number, since it is larger than the sum of its proper divisors (25870387).

512401613 is a wasteful number, since it uses less digits than its factorization.

512401613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149691.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 512401613 is about 22636.2897357319. The cubic root of 512401613 is about 800.2091187694.

Adding to 512401613 its reverse (316104215), we get a palindrome (828505828).

The spelling of 512401613 in words is "five hundred twelve million, four hundred one thousand, six hundred thirteen".