12871167157 has 2 divisors, whose sum is σ = 12871167158. Its totient is φ = 12871167156.

The previous prime is 12871167139. The next prime is 12871167173. The reversal of 12871167157 is 75176117821.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7424579556 + 5446587601 = 86166^2 + 73801^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12871167157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12871167457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6435583578 + 6435583579.

It is an arithmetic number, because the mean of its divisors is an integer number (6435583579).

Almost surely, 2^12871167157 is an apocalyptic number.

It is an amenable number.

12871167157 is a deficient number, since it is larger than the sum of its proper divisors (1).

12871167157 is an equidigital number, since it uses as much as digits as its factorization.

12871167157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 164640, while the sum is 46.

The spelling of 12871167157 in words is "twelve billion, eight hundred seventy-one million, one hundred sixty-seven thousand, one hundred fifty-seven".