115156137 has 4 divisors (see below), whose sum is σ = 153541520. Its totient is φ = 76770756.

The previous prime is 115156123. The next prime is 115156177. The reversal of 115156137 is 731651511.

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 115156137 - 2¹² = 115152041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115156177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19192687 + ... + 19192692.

It is an arithmetic number, because the mean of its divisors is an integer number (38385380).

Almost surely, 2^115156137 is an apocalyptic number.

It is an amenable number.

115156137 is a deficient number, since it is larger than the sum of its proper divisors (38385383).

115156137 is an equidigital number, since it uses as much as digits as its factorization.

115156137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38385382.

The product of its digits is 3150, while the sum is 30.

The square root of 115156137 is about 10731.0827505895. The cubic root of 115156137 is about 486.5143963373.

The spelling of 115156137 in words is "one hundred fifteen million, one hundred fifty-six thousand, one hundred thirty-seven".