13157154173 has 2 divisors, whose sum is σ = 13157154174. Its totient is φ = 13157154172.

The previous prime is 13157154113. The next prime is 13157154187. The reversal of 13157154173 is 37145175131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12254932804 + 902221369 = 110702^2 + 30037^2 .

It is a cyclic number.

It is not a de Polignac number, because 13157154173 - 2³² = 8862186877 is a prime.

It is a super-2 number, since 2×13157154173² (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 (13157154113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6578577086 + 6578577087.

It is an arithmetic number, because the mean of its divisors is an integer number (6578577087).

Almost surely, 2^13157154173 is an apocalyptic number.

It is an amenable number.

13157154173 is a deficient number, since it is larger than the sum of its proper divisors (1).

13157154173 is an equidigital number, since it uses as much as digits as its factorization.

13157154173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44100, while the sum is 38.

The spelling of 13157154173 in words is "thirteen billion, one hundred fifty-seven million, one hundred fifty-four thousand, one hundred seventy-three".