115513230 has 32 divisors (see below), whose sum is σ = 316836864. Its totient is φ = 26402976.

The previous prime is 115513213. The next prime is 115513243. The reversal of 115513230 is 32315511.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 115513197 and 115513206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274822 + ... + 275241.

It is an arithmetic number, because the mean of its divisors is an integer number (9901152).

Almost surely, 2^115513230 is an apocalyptic number.

115513230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115513230 is an abundant number, since it is smaller than the sum of its proper divisors (201323634).

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

115513230 is a wasteful number, since it uses less digits than its factorization.

115513230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550080.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 115513230 is about 10747.7081277824. The cubic root of 115513230 is about 487.0167624345.

Adding to 115513230 its reverse (32315511), we get a palindrome (147828741).

The spelling of 115513230 in words is "one hundred fifteen million, five hundred thirteen thousand, two hundred thirty".