115112420 has 24 divisors (see below), whose sum is σ = 247633848. Its totient is φ = 44921600.

The previous prime is 115112407. The next prime is 115112441. The reversal of 115112420 is 24211511.

It can be written as a sum of positive squares in 4 ways, for example, as 8444836 + 106667584 = 2906^2 + 10328^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69371 + ... + 71010.

It is an arithmetic number, because the mean of its divisors is an integer number (10318077).

Almost surely, 2^115112420 is an apocalyptic number.

115112420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115112420 is an abundant number, since it is smaller than the sum of its proper divisors (132521428).

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

115112420 is a wasteful number, since it uses less digits than its factorization.

115112420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140431 (or 140429 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 115112420 is about 10729.0456239127. The cubic root of 115112420 is about 486.4528230032.

Adding to 115112420 its reverse (24211511), we get a palindrome (139323931).

Subtracting from 115112420 its reverse (24211511), we obtain a palindrome (90900909).

It can be divided in two parts, 11511 and 2420, that added together give a palindrome (13931).

The spelling of 115112420 in words is "one hundred fifteen million, one hundred twelve thousand, four hundred twenty".