13997115 has 24 divisors (see below), whose sum is σ = 26468208. Its totient is φ = 6786240.

The previous prime is 13997099. The next prime is 13997143. The reversal of 13997115 is 51179931.

It is not a de Polignac number, because 13997115 - 2⁴ = 13997099 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 13997115.

It is an unprimeable number.

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, 13644 + ... + 14633.

It is an arithmetic number, because the mean of its divisors is an integer number (1102842).

Almost surely, 2^13997115 is an apocalyptic number.

13997115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13997115 is a deficient number, since it is larger than the sum of its proper divisors (12471093).

13997115 is a wasteful number, since it uses less digits than its factorization.

13997115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28299 (or 28296 counting only the distinct ones).

The product of its digits is 8505, while the sum is 36.

The square root of 13997115 is about 3741.2718425690. The cubic root of 13997115 is about 240.9976698982.

The spelling of 13997115 in words is "thirteen million, nine hundred ninety-seven thousand, one hundred fifteen".