13113885 has 16 divisors (see below), whose sum is σ = 22216896. Its totient is φ = 6582528.

The previous prime is 13113811. The next prime is 13113929. The reversal of 13113885 is 58831131.

It is not a de Polignac number, because 13113885 - 2¹¹ = 13111837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25459 + ... + 25968.

It is an arithmetic number, because the mean of its divisors is an integer number (1388556).

Almost surely, 2^13113885 is an apocalyptic number.

13113885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13113885 is a deficient number, since it is larger than the sum of its proper divisors (9103011).

13113885 is a wasteful number, since it uses less digits than its factorization.

13113885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51452.

The product of its digits is 2880, while the sum is 30.

The square root of 13113885 is about 3621.3098458983. The cubic root of 13113885 is about 235.8180933297.

The spelling of 13113885 in words is "thirteen million, one hundred thirteen thousand, eight hundred eighty-five".