13602091 has 4 divisors (see below), whose sum is σ = 14402232. Its totient is φ = 12801952.

The previous prime is 13602059. The next prime is 13602103. The reversal of 13602091 is 19020631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19020631 = 7 ⋅2717233.

It is not a de Polignac number, because 13602091 - 2⁵ = 13602059 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

13602091 is a modest number, since divided by 2091 gives 136 as remainder.

It is not an unprimeable number, because it can be changed into a prime (13602011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400045 + ... + 400078.

It is an arithmetic number, because the mean of its divisors is an integer number (3600558).

Almost surely, 2^13602091 is an apocalyptic number.

13602091 is a deficient number, since it is larger than the sum of its proper divisors (800141).

13602091 is an equidigital number, since it uses as much as digits as its factorization.

13602091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800140.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 13602091 is about 3688.1012730130. The cubic root of 13602091 is about 238.7088709613.

The spelling of 13602091 in words is "thirteen million, six hundred two thousand, ninety-one".