13911199 has 4 divisors (see below), whose sum is σ = 14020864. Its totient is φ = 13801536.

The previous prime is 13911193. The next prime is 13911203. The reversal of 13911199 is 99111931.

13911199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13911199 - 2⁷ = 13911071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13911193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54642 + ... + 54895.

It is an arithmetic number, because the mean of its divisors is an integer number (3505216).

Almost surely, 2^13911199 is an apocalyptic number.

13911199 is a deficient number, since it is larger than the sum of its proper divisors (109665).

13911199 is a wasteful number, since it uses less digits than its factorization.

13911199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109664.

The product of its digits is 2187, while the sum is 34.

The square root of 13911199 is about 3729.7719769444. The cubic root of 13911199 is about 240.5035665234.

The spelling of 13911199 in words is "thirteen million, nine hundred eleven thousand, one hundred ninety-nine".