115041312 has 72 divisors (see below), whose sum is σ = 346407516. Its totient is φ = 36089856.

The previous prime is 115041287. The next prime is 115041319. The reversal of 115041312 is 213140511.

It can be written as a sum of positive squares in 2 ways, for example, as 104775696 + 10265616 = 10236^2 + 3204^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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

It is not an unprimeable number, because it can be changed into a prime (115041319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6853 + ... + 16644.

Almost surely, 2^115041312 is an apocalyptic number.

115041312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

115041312 is an abundant number, since it is smaller than the sum of its proper divisors (231366204).

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

115041312 is a wasteful number, since it uses less digits than its factorization.

115041312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23530 (or 23519 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 115041312 is about 10725.7313037387. The cubic root of 115041312 is about 486.3526374272.

Adding to 115041312 its reverse (213140511), we get a palindrome (328181823).

The spelling of 115041312 in words is "one hundred fifteen million, forty-one thousand, three hundred twelve".