13113685 has 16 divisors (see below), whose sum is σ = 17040240. Its totient is φ = 9630720.

The previous prime is 13113679. The next prime is 13113689. The reversal of 13113685 is 58631131.

It can be written as a sum of positive squares in 8 ways, for example, as 432964 + 12680721 = 658^2 + 3561^2 .

It is not a de Polignac number, because 13113685 - 2⁷ = 13113557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13113689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14445 + ... + 15325.

It is an arithmetic number, because the mean of its divisors is an integer number (1065015).

Almost surely, 2^13113685 is an apocalyptic number.

It is an amenable number.

13113685 is a deficient number, since it is larger than the sum of its proper divisors (3926555).

13113685 is a wasteful number, since it uses less digits than its factorization.

13113685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128.

The product of its digits is 2160, while the sum is 28.

The square root of 13113685 is about 3621.2822314755. The cubic root of 13113685 is about 235.8168945022.

The spelling of 13113685 in words is "thirteen million, one hundred thirteen thousand, six hundred eighty-five".