13959890137 has 2 divisors, whose sum is σ = 13959890138. Its totient is φ = 13959890136.

The previous prime is 13959890129. The next prime is 13959890149. The reversal of 13959890137 is 73109895931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12593552841 + 1366337296 = 112221^2 + 36964^2 .

It is a cyclic number.

It is not a de Polignac number, because 13959890137 - 2³ = 13959890129 is a prime.

It is not a weakly prime, because it can be changed into another prime (13959890107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6979945068 + 6979945069.

It is an arithmetic number, because the mean of its divisors is an integer number (6979945069).

Almost surely, 2^13959890137 is an apocalyptic number.

It is an amenable number.

13959890137 is a deficient number, since it is larger than the sum of its proper divisors (1).

13959890137 is an equidigital number, since it uses as much as digits as its factorization.

13959890137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1837080, while the sum is 55.

The spelling of 13959890137 in words is "thirteen billion, nine hundred fifty-nine million, eight hundred ninety thousand, one hundred thirty-seven".