13670513 has 8 divisors (see below), whose sum is σ = 14183400. Its totient is φ = 13160448.

The previous prime is 13670497. The next prime is 13670521. The reversal of 13670513 is 31507631.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2704 + 13667809 = 52^2 + 3697^2 .

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 13670513 - 2⁴ = 13670497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13670543) 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, 17393 + ... + 18161.

It is an arithmetic number, because the mean of its divisors is an integer number (1772925).

Almost surely, 2^13670513 is an apocalyptic number.

It is an amenable number.

13670513 is a deficient number, since it is larger than the sum of its proper divisors (512887).

13670513 is an equidigital number, since it uses as much as digits as its factorization.

13670513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 13670513 is about 3697.3656838349. The cubic root of 13670513 is about 239.1084572788.

The spelling of 13670513 in words is "thirteen million, six hundred seventy thousand, five hundred thirteen".