13091049 has 12 divisors (see below), whose sum is σ = 19349616. Its totient is φ = 8524152.

The previous prime is 13091041. The next prime is 13091059. The reversal of 13091049 is 94019031.

13091049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13091049 - 2³ = 13091041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13091041) 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, 16527 + ... + 17300.

It is an arithmetic number, because the mean of its divisors is an integer number (1612468).

Almost surely, 2^13091049 is an apocalyptic number.

It is an amenable number.

13091049 is a deficient number, since it is larger than the sum of its proper divisors (6258567).

13091049 is a wasteful number, since it uses less digits than its factorization.

13091049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33876 (or 33873 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 13091049 is about 3618.1554692965. The cubic root of 13091049 is about 235.6811323698.

The spelling of 13091049 in words is "thirteen million, ninety-one thousand, forty-nine".