13085513 has 16 divisors (see below), whose sum is σ = 15365376. Its totient is φ = 10913280.

The previous prime is 13085507. The next prime is 13085521. The reversal of 13085513 is 31558031.

It is a de Polignac number, because none of the positive numbers 2^k-13085513 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13085543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56045 + ... + 56277.

It is an arithmetic number, because the mean of its divisors is an integer number (960336).

Almost surely, 2^13085513 is an apocalyptic number.

It is an amenable number.

13085513 is a deficient number, since it is larger than the sum of its proper divisors (2279863).

13085513 is a wasteful number, since it uses less digits than its factorization.

13085513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 13085513 is about 3617.3903577026. The cubic root of 13085513 is about 235.6479057301.

The spelling of 13085513 in words is "thirteen million, eighty-five thousand, five hundred thirteen".