13568091 has 32 divisors (see below), whose sum is σ = 20528640. Its totient is φ = 7924224.

The previous prime is 13568083. The next prime is 13568099. The reversal of 13568091 is 19086531.

13568091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13568083) and next prime (13568099).

It is not a de Polignac number, because 13568091 - 2³ = 13568083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13568099) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50305 + ... + 50573.

It is an arithmetic number, because the mean of its divisors is an integer number (641520).

Almost surely, 2^13568091 is an apocalyptic number.

13568091 is a deficient number, since it is larger than the sum of its proper divisors (6960549).

13568091 is a wasteful number, since it uses less digits than its factorization.

13568091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 13568091 is about 3683.4889710708. The cubic root of 13568091 is about 238.5098115324.

The spelling of 13568091 in words is "thirteen million, five hundred sixty-eight thousand, ninety-one".