13091361 has 16 divisors (see below), whose sum is σ = 18469440. Its totient is φ = 8225280.

The previous prime is 13091359. The next prime is 13091363. The reversal of 13091361 is 16319031.

It is an interprime number because it is at equal distance from previous prime (13091359) and next prime (13091363).

It is not a de Polignac number, because 13091361 - 2¹ = 13091359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13091363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13261 + ... + 14213.

It is an arithmetic number, because the mean of its divisors is an integer number (1154340).

Almost surely, 2^13091361 is an apocalyptic number.

It is an amenable number.

13091361 is a deficient number, since it is larger than the sum of its proper divisors (5378079).

13091361 is a wasteful number, since it uses less digits than its factorization.

13091361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 13091361 is about 3618.1985849315. The cubic root of 13091361 is about 235.6830046906.

The spelling of 13091361 in words is "thirteen million, ninety-one thousand, three hundred sixty-one".