13422091 has 4 divisors (see below), whose sum is σ = 13675392. Its totient is φ = 13168792.

The previous prime is 13422089. The next prime is 13422107. The reversal of 13422091 is 19022431.

13422091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13422091 - 2¹ = 13422089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13422011) 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, 126571 + ... + 126676.

It is an arithmetic number, because the mean of its divisors is an integer number (3418848).

Almost surely, 2^13422091 is an apocalyptic number.

13422091 is a deficient number, since it is larger than the sum of its proper divisors (253301).

13422091 is an equidigital number, since it uses as much as digits as its factorization.

13422091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253300.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 13422091 is about 3663.6172016192. The cubic root of 13422091 is about 237.6512263097.

The spelling of 13422091 in words is "thirteen million, four hundred twenty-two thousand, ninety-one".