13122091 has 8 divisors (see below), whose sum is σ = 13503168. Its totient is φ = 12744000.

The previous prime is 13122073. The next prime is 13122119. The reversal of 13122091 is 19022131.

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

It is a cyclic number.

It is not a de Polignac number, because 13122091 - 2⁵ = 13122059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13122001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10521 + ... + 11701.

It is an arithmetic number, because the mean of its divisors is an integer number (1687896).

Almost surely, 2^13122091 is an apocalyptic number.

13122091 is a deficient number, since it is larger than the sum of its proper divisors (381077).

13122091 is a wasteful number, since it uses less digits than its factorization.

13122091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 13122091 is about 3622.4426841566. The cubic root of 13122091 is about 235.8672707164.

It can be divided in two parts, 1312 and 2091, that added together give a triangular number (3403 = T₈₂).

The spelling of 13122091 in words is "thirteen million, one hundred twenty-two thousand, ninety-one".