513135013 has 4 divisors (see below), whose sum is σ = 513503200. Its totient is φ = 512766828.

The previous prime is 513135001. The next prime is 513135023. The reversal of 513135013 is 310531315.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 513135013 - 2¹³ = 513126821 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 (513135023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181995 + ... + 184792.

It is an arithmetic number, because the mean of its divisors is an integer number (128375800).

Almost surely, 2^513135013 is an apocalyptic number.

It is an amenable number.

513135013 is a deficient number, since it is larger than the sum of its proper divisors (368187).

513135013 is a wasteful number, since it uses less digits than its factorization.

513135013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368186.

The product of its (nonzero) digits is 675, while the sum is 22.

The square root of 513135013 is about 22652.4835945200. The cubic root of 513135013 is about 800.5907163146.

Adding to 513135013 its reverse (310531315), we get a palindrome (823666328).

The spelling of 513135013 in words is "five hundred thirteen million, one hundred thirty-five thousand, thirteen".