13916231 has 4 divisors (see below), whose sum is σ = 15904272. Its totient is φ = 11928192.

The previous prime is 13916197. The next prime is 13916237. The reversal of 13916231 is 13261931.

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 13916231 - 2⁶ = 13916167 is a prime.

It is a super-2 number, since 2×13916231² = 387322970490722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13916231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13916237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 994010 + ... + 994023.

It is an arithmetic number, because the mean of its divisors is an integer number (3976068).

Almost surely, 2^13916231 is an apocalyptic number.

13916231 is a deficient number, since it is larger than the sum of its proper divisors (1988041).

13916231 is an equidigital number, since it uses as much as digits as its factorization.

13916231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988040.

The product of its digits is 972, while the sum is 26.

The square root of 13916231 is about 3730.4464880226. The cubic root of 13916231 is about 240.5325615812.

The spelling of 13916231 in words is "thirteen million, nine hundred sixteen thousand, two hundred thirty-one".