13570513 has 6 divisors (see below), whose sum is σ = 14916482. Its totient is φ = 12336720.

The previous prime is 13570493. The next prime is 13570517. The reversal of 13570513 is 31507531.

13570513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12159169 + 1411344 = 3487^2 + 1188^2 .

It is not a de Polignac number, because 13570513 - 2⁹ = 13570001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13570517) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55956 + ... + 56197.

Almost surely, 2^13570513 is an apocalyptic number.

It is an amenable number.

13570513 is a deficient number, since it is larger than the sum of its proper divisors (1345969).

13570513 is a wasteful number, since it uses less digits than its factorization.

13570513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112175 (or 112164 counting only the distinct ones).

The product of its (nonzero) digits is 1575, while the sum is 25.

The square root of 13570513 is about 3683.8177207891. The cubic root of 13570513 is about 238.5240025829.

The spelling of 13570513 in words is "thirteen million, five hundred seventy thousand, five hundred thirteen".