14131391 has 4 divisors (see below), whose sum is σ = 14460072. Its totient is φ = 13802712.

The previous prime is 14131387. The next prime is 14131393. The reversal of 14131391 is 19313141.

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 14131391 - 2² = 14131387 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 (14131393) 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, 164276 + ... + 164361.

It is an arithmetic number, because the mean of its divisors is an integer number (3615018).

Almost surely, 2^14131391 is an apocalyptic number.

14131391 is a deficient number, since it is larger than the sum of its proper divisors (328681).

14131391 is an equidigital number, since it uses as much as digits as its factorization.

14131391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328680.

The product of its digits is 324, while the sum is 23.

The square root of 14131391 is about 3759.1742444319. The cubic root of 14131391 is about 241.7658585017.

The spelling of 14131391 in words is "fourteen million, one hundred thirty-one thousand, three hundred ninety-one".