8115251137 has 4 divisors (see below), whose sum is σ = 9274572736. Its totient is φ = 6955929540.

The previous prime is 8115251113. The next prime is 8115251149. The reversal of 8115251137 is 7311525118.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8115251137 - 2⁷ = 8115251009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8115251737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579660789 + ... + 579660802.

It is an arithmetic number, because the mean of its divisors is an integer number (2318643184).

Almost surely, 2^8115251137 is an apocalyptic number.

It is an amenable number.

8115251137 is a deficient number, since it is larger than the sum of its proper divisors (1159321599).

8115251137 is a wasteful number, since it uses less digits than its factorization.

8115251137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159321598.

The product of its digits is 8400, while the sum is 34.

The square root of 8115251137 is about 90084.6886934733. The cubic root of 8115251137 is about 2009.5585061209.

The spelling of 8115251137 in words is "eight billion, one hundred fifteen million, two hundred fifty-one thousand, one hundred thirty-seven".