12152991157 has 2 divisors, whose sum is σ = 12152991158. Its totient is φ = 12152991156.

The previous prime is 12152991139. The next prime is 12152991211. The reversal of 12152991157 is 75119925121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8706009636 + 3446981521 = 93306^2 + 58711^2 .

It is a cyclic number.

It is not a de Polignac number, because 12152991157 - 2¹⁹ = 12152466869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12152991457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6076495578 + 6076495579.

It is an arithmetic number, because the mean of its divisors is an integer number (6076495579).

Almost surely, 2^12152991157 is an apocalyptic number.

It is an amenable number.

12152991157 is a deficient number, since it is larger than the sum of its proper divisors (1).

12152991157 is an equidigital number, since it uses as much as digits as its factorization.

12152991157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 43.

The spelling of 12152991157 in words is "twelve billion, one hundred fifty-two million, nine hundred ninety-one thousand, one hundred fifty-seven".