13979251 has 12 divisors (see below), whose sum is σ = 16549456. Its totient is φ = 11729520.

The previous prime is 13979249. The next prime is 13979279. The reversal of 13979251 is 15297931.

It is not a de Polignac number, because 13979251 - 2¹ = 13979249 is a prime.

It is a hoax number, since the sum of its digits (37) 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 13979251.

It is not an unprimeable number, because it can be changed into a prime (13979291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2871 + ... + 6016.

Almost surely, 2^13979251 is an apocalyptic number.

13979251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13979251 is a deficient number, since it is larger than the sum of its proper divisors (2570205).

13979251 is a wasteful number, since it uses less digits than its factorization.

13979251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8922 (or 8911 counting only the distinct ones).

The product of its digits is 17010, while the sum is 37.

The square root of 13979251 is about 3738.8836569222. The cubic root of 13979251 is about 240.8951007809.

It can be divided in two parts, 1397 and 9251, that added together give a cube (10648 = 22³).

The spelling of 13979251 in words is "thirteen million, nine hundred seventy-nine thousand, two hundred fifty-one".