13157236999 has 2 divisors, whose sum is σ = 13157237000. Its totient is φ = 13157236998.

The previous prime is 13157236993. The next prime is 13157237047. The reversal of 13157236999 is 99963275131.

It is a weak prime.

It is an emirp because it is prime and its reverse (99963275131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13157236999 - 2³ = 13157236991 is a prime.

It is a super-2 number, since 2×13157236999² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13157236991) 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 as a sum of consecutive naturals, namely, 6578618499 + 6578618500.

It is an arithmetic number, because the mean of its divisors is an integer number (6578618500).

Almost surely, 2^13157236999 is an apocalyptic number.

13157236999 is a deficient number, since it is larger than the sum of its proper divisors (1).

13157236999 is an equidigital number, since it uses as much as digits as its factorization.

13157236999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2755620, while the sum is 55.

The spelling of 13157236999 in words is "thirteen billion, one hundred fifty-seven million, two hundred thirty-six thousand, nine hundred ninety-nine".