13157251 has 2 divisors, whose sum is σ = 13157252. Its totient is φ = 13157250.

The previous prime is 13157239. The next prime is 13157267. The reversal of 13157251 is 15275131.

13157251 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 an emirp because it is prime and its reverse (15275131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13157251 - 2¹⁵ = 13124483 is a prime.

It is a super-2 number, since 2×13157251² = 346226507754002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13157231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6578625 + 6578626.

It is an arithmetic number, because the mean of its divisors is an integer number (6578626).

Almost surely, 2^13157251 is an apocalyptic number.

13157251 is a deficient number, since it is larger than the sum of its proper divisors (1).

13157251 is an equidigital number, since it uses as much as digits as its factorization.

13157251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1050, while the sum is 25.

The square root of 13157251 is about 3627.2925164646. The cubic root of 13157251 is about 236.0777477729.

The spelling of 13157251 in words is "thirteen million, one hundred fifty-seven thousand, two hundred fifty-one".