13085091 has 32 divisors (see below), whose sum is σ = 21312000. Its totient is φ = 7897824.

The previous prime is 13085089. The next prime is 13085113. The reversal of 13085091 is 19058031.

It is not a de Polignac number, because 13085091 - 2¹ = 13085089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13085491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11245 + ... + 12353.

It is an arithmetic number, because the mean of its divisors is an integer number (666000).

Almost surely, 2^13085091 is an apocalyptic number.

13085091 is a deficient number, since it is larger than the sum of its proper divisors (8226909).

13085091 is a wasteful number, since it uses less digits than its factorization.

13085091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160 (or 1154 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 13085091 is about 3617.3320278902. The cubic root of 13085091 is about 235.6453725346.

The spelling of 13085091 in words is "thirteen million, eighty-five thousand, ninety-one".