15168131089 has 2 divisors, whose sum is σ = 15168131090. Its totient is φ = 15168131088.

The previous prime is 15168131063. The next prime is 15168131113. The reversal of 15168131089 is 98013186151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8706382864 + 6461748225 = 93308^2 + 80385^2 .

It is an emirp because it is prime and its reverse (98013186151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15168131089 - 2⁹ = 15168130577 is a prime.

It is not a weakly prime, because it can be changed into another prime (15168131039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7584065544 + 7584065545.

It is an arithmetic number, because the mean of its divisors is an integer number (7584065545).

Almost surely, 2^15168131089 is an apocalyptic number.

It is an amenable number.

15168131089 is a deficient number, since it is larger than the sum of its proper divisors (1).

15168131089 is an equidigital number, since it uses as much as digits as its factorization.

15168131089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 43.

The spelling of 15168131089 in words is "fifteen billion, one hundred sixty-eight million, one hundred thirty-one thousand, eighty-nine".