13990107251 has 2 divisors, whose sum is σ = 13990107252. Its totient is φ = 13990107250.

The previous prime is 13990107179. The next prime is 13990107283. The reversal of 13990107251 is 15270109931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13990107251 - 2²² = 13985912947 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (13990104251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6995053625 + 6995053626.

It is an arithmetic number, because the mean of its divisors is an integer number (6995053626).

Almost surely, 2^13990107251 is an apocalyptic number.

13990107251 is a deficient number, since it is larger than the sum of its proper divisors (1).

13990107251 is an equidigital number, since it uses as much as digits as its factorization.

13990107251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17010, while the sum is 38.

The spelling of 13990107251 in words is "thirteen billion, nine hundred ninety million, one hundred seven thousand, two hundred fifty-one".