13969115 has 4 divisors (see below), whose sum is σ = 16762944. Its totient is φ = 11175288.

The previous prime is 13969099. The next prime is 13969129. The reversal of 13969115 is 51196931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13969115 - 2⁴ = 13969099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1396907 + ... + 1396916.

It is an arithmetic number, because the mean of its divisors is an integer number (4190736).

Almost surely, 2^13969115 is an apocalyptic number.

13969115 is a deficient number, since it is larger than the sum of its proper divisors (2793829).

13969115 is an equidigital number, since it uses as much as digits as its factorization.

13969115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2793828.

The product of its digits is 7290, while the sum is 35.

The square root of 13969115 is about 3737.5279263171. The cubic root of 13969115 is about 240.8368643962.

The spelling of 13969115 in words is "thirteen million, nine hundred sixty-nine thousand, one hundred fifteen".