115112505 has 16 divisors (see below), whose sum is σ = 188464320. Its totient is φ = 59965248.

The previous prime is 115112497. The next prime is 115112509. The reversal of 115112505 is 505211511.

It is not a de Polignac number, because 115112505 - 2³ = 115112497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115112509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88590 + ... + 89879.

It is an arithmetic number, because the mean of its divisors is an integer number (11779020).

Almost surely, 2^115112505 is an apocalyptic number.

115112505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115112505 is a deficient number, since it is larger than the sum of its proper divisors (73351815).

115112505 is a wasteful number, since it uses less digits than its factorization.

115112505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178520.

The product of its (nonzero) digits is 250, while the sum is 21.

The square root of 115112505 is about 10729.0495851217. The cubic root of 115112505 is about 486.4529427368.

The spelling of 115112505 in words is "one hundred fifteen million, one hundred twelve thousand, five hundred five".