115032312 has 96 divisors (see below), whose sum is σ = 330220800. Its totient is φ = 37498464.

The previous prime is 115032311. The next prime is 115032343. The reversal of 115032312 is 213230511.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115032311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90739 + ... + 91997.

It is an arithmetic number, because the mean of its divisors is an integer number (3439800).

Almost surely, 2^115032312 is an apocalyptic number.

115032312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115032312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165110400).

115032312 is an abundant number, since it is smaller than the sum of its proper divisors (215188488).

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

115032312 is a wasteful number, since it uses less digits than its factorization.

115032312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327 (or 1311 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 115032312 is about 10725.3117437210. The cubic root of 115032312 is about 486.3399541925.

Adding to 115032312 its reverse (213230511), we get a palindrome (328262823).

The spelling of 115032312 in words is "one hundred fifteen million, thirty-two thousand, three hundred twelve".