13103091 has 12 divisors (see below), whose sum is σ = 19066632. Its totient is φ = 8670816.

The previous prime is 13103087. The next prime is 13103147. The reversal of 13103091 is 19030131.

It is not a de Polignac number, because 13103091 - 2² = 13103087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13103011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4081 + ... + 6546.

It is an arithmetic number, because the mean of its divisors is an integer number (1588886).

Almost surely, 2^13103091 is an apocalyptic number.

13103091 is a deficient number, since it is larger than the sum of its proper divisors (5963541).

13103091 is a wasteful number, since it uses less digits than its factorization.

13103091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10770 (or 10767 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

The square root of 13103091 is about 3619.8191943797. The cubic root of 13103091 is about 235.7533751780.

The spelling of 13103091 in words is "thirteen million, one hundred three thousand, ninety-one".