115115154 has 64 divisors (see below), whose sum is σ = 289999872. Its totient is φ = 29592000.

The previous prime is 115115149. The next prime is 115115197. The reversal of 115115154 is 451511511.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45429 + ... + 47895.

It is an arithmetic number, because the mean of its divisors is an integer number (4531248).

Almost surely, 2^115115154 is an apocalyptic number.

115115154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 115115154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144999936).

115115154 is an abundant number, since it is smaller than the sum of its proper divisors (174884718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115115154 is a wasteful number, since it uses less digits than its factorization.

115115154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591.

The product of its digits is 500, while the sum is 24.

The square root of 115115154 is about 10729.1730343023. The cubic root of 115115154 is about 486.4566741703.

Adding to 115115154 its reverse (451511511), we get a palindrome (566626665).

The spelling of 115115154 in words is "one hundred fifteen million, one hundred fifteen thousand, one hundred fifty-four".