13931299 has 2 divisors, whose sum is σ = 13931300. Its totient is φ = 13931298.

The previous prime is 13931287. The next prime is 13931327. The reversal of 13931299 is 99213931.

13931299 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13931299 is a prime.

It is not a weakly prime, because it can be changed into another prime (13931219) 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 as a sum of consecutive naturals, namely, 6965649 + 6965650.

It is an arithmetic number, because the mean of its divisors is an integer number (6965650).

Almost surely, 2^13931299 is an apocalyptic number.

13931299 is a deficient number, since it is larger than the sum of its proper divisors (1).

13931299 is an equidigital number, since it uses as much as digits as its factorization.

13931299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13122, while the sum is 37.

The square root of 13931299 is about 3732.4655390238. The cubic root of 13931299 is about 240.6193436350.

The spelling of 13931299 in words is "thirteen million, nine hundred thirty-one thousand, two hundred ninety-nine".