13306391 has 12 divisors (see below), whose sum is σ = 15539112. Its totient is φ = 11361168.

The previous prime is 13306379. The next prime is 13306411. The reversal of 13306391 is 19360331.

It is not a de Polignac number, because 13306391 - 2¹⁰ = 13305367 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13306391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13306361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21401 + ... + 22013.

It is an arithmetic number, because the mean of its divisors is an integer number (1294926).

Almost surely, 2^13306391 is an apocalyptic number.

13306391 is a deficient number, since it is larger than the sum of its proper divisors (2232721).

13306391 is an equidigital number, since it uses as much as digits as its factorization.

13306391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070 (or 1063 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 13306391 is about 3647.7926202020. The cubic root of 13306391 is about 236.9663942571.

The spelling of 13306391 in words is "thirteen million, three hundred six thousand, three hundred ninety-one".