115521159 has 64 divisors (see below), whose sum is σ = 185794560. Its totient is φ = 63192960.

The previous prime is 115521151. The next prime is 115521163. The reversal of 115521159 is 951125511.

It is not a de Polignac number, because 115521159 - 2³ = 115521151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115521151) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1079584 + ... + 1079690.

It is an arithmetic number, because the mean of its divisors is an integer number (2903040).

Almost surely, 2^115521159 is an apocalyptic number.

115521159 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

115521159 is a deficient number, since it is larger than the sum of its proper divisors (70273401).

115521159 is a wasteful number, since it uses less digits than its factorization.

115521159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220.

The product of its digits is 2250, while the sum is 30.

The square root of 115521159 is about 10748.0769907924. The cubic root of 115521159 is about 487.0279053646.

The spelling of 115521159 in words is "one hundred fifteen million, five hundred twenty-one thousand, one hundred fifty-nine".