13613091 has 8 divisors (see below), whose sum is σ = 18181200. Its totient is φ = 9060192.

The previous prime is 13613081. The next prime is 13613099. The reversal of 13613091 is 19031631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13613091 - 2⁵ = 13613059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13613099) 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 7 ways as a sum of consecutive naturals, for example, 1516 + ... + 5433.

It is an arithmetic number, because the mean of its divisors is an integer number (2272650).

Almost surely, 2^13613091 is an apocalyptic number.

13613091 is a deficient number, since it is larger than the sum of its proper divisors (4568109).

13613091 is an equidigital number, since it uses as much as digits as its factorization.

13613091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7605.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 13613091 is about 3689.5922538947. The cubic root of 13613091 is about 238.7732015134.

The spelling of 13613091 in words is "thirteen million, six hundred thirteen thousand, ninety-one".