13386915 has 12 divisors (see below), whose sum is σ = 23204064. Its totient is φ = 7139664.

The previous prime is 13386911. The next prime is 13386917. The reversal of 13386915 is 51968331.

It is a happy number.

It is not a de Polignac number, because 13386915 - 2² = 13386911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13386915.

It is not an unprimeable number, because it can be changed into a prime (13386911) 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, 148699 + ... + 148788.

It is an arithmetic number, because the mean of its divisors is an integer number (1933672).

Almost surely, 2^13386915 is an apocalyptic number.

13386915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13386915 is a deficient number, since it is larger than the sum of its proper divisors (9817149).

13386915 is a wasteful number, since it uses less digits than its factorization.

13386915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297498 (or 297495 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 13386915 is about 3658.8133322158. The cubic root of 13386915 is about 237.4434362065.

The spelling of 13386915 in words is "thirteen million, three hundred eighty-six thousand, nine hundred fifteen".