14931139 has 4 divisors (see below), whose sum is σ = 14966056. Its totient is φ = 14896224.

The previous prime is 14931109. The next prime is 14931149. The reversal of 14931139 is 93113941.

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 14931139 - 2¹¹ = 14929091 is a prime.

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 14931139.

It is not an unprimeable number, because it can be changed into a prime (14931109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16809 + ... + 17674.

It is an arithmetic number, because the mean of its divisors is an integer number (3741514).

Almost surely, 2^14931139 is an apocalyptic number.

14931139 is a deficient number, since it is larger than the sum of its proper divisors (34917).

14931139 is an equidigital number, since it uses as much as digits as its factorization.

14931139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34916.

The product of its digits is 2916, while the sum is 31.

The square root of 14931139 is about 3864.0832030379. The cubic root of 14931139 is about 246.2432377230.

The spelling of 14931139 in words is "fourteen million, nine hundred thirty-one thousand, one hundred thirty-nine".