13399191 has 24 divisors (see below), whose sum is σ = 21149856. Its totient is φ = 8124480.

The previous prime is 13399171. The next prime is 13399193. The reversal of 13399191 is 19199331.

It is not a de Polignac number, because 13399191 - 2⁷ = 13399063 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13399193) 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 23 ways as a sum of consecutive naturals, for example, 7501 + ... + 9113.

It is an arithmetic number, because the mean of its divisors is an integer number (881244).

Almost surely, 2^13399191 is an apocalyptic number.

13399191 is a deficient number, since it is larger than the sum of its proper divisors (7750665).

13399191 is a wasteful number, since it uses less digits than its factorization.

13399191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703 (or 1700 counting only the distinct ones).

The product of its digits is 6561, while the sum is 36.

The square root of 13399191 is about 3660.4905408975. The cubic root of 13399191 is about 237.5159937521.

The spelling of 13399191 in words is "thirteen million, three hundred ninety-nine thousand, one hundred ninety-one".