13091057 has 8 divisors (see below), whose sum is σ = 15748800. Its totient is φ = 10630224.

The previous prime is 13091041. The next prime is 13091059. The reversal of 13091057 is 75019031.

13091057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13091057 - 2⁴ = 13091041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13091059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49082 + ... + 49347.

It is an arithmetic number, because the mean of its divisors is an integer number (1968600).

Almost surely, 2^13091057 is an apocalyptic number.

It is an amenable number.

13091057 is a deficient number, since it is larger than the sum of its proper divisors (2657743).

13091057 is an equidigital number, since it uses as much as digits as its factorization.

13091057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98455.

The product of its (nonzero) digits is 945, while the sum is 26.

The square root of 13091057 is about 3618.1565748320. The cubic root of 13091057 is about 235.6811803784.

The spelling of 13091057 in words is "thirteen million, ninety-one thousand, fifty-seven".