115305312 has 24 divisors (see below), whose sum is σ = 302676696. Its totient is φ = 38435072.

The previous prime is 115305301. The next prime is 115305367. The reversal of 115305312 is 213503511.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600453 + ... + 600644.

It is an arithmetic number, because the mean of its divisors is an integer number (12611529).

Almost surely, 2^115305312 is an apocalyptic number.

115305312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

115305312 is an abundant number, since it is smaller than the sum of its proper divisors (187371384).

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

115305312 is a wasteful number, since it uses less digits than its factorization.

115305312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201110 (or 1201102 counting only the distinct ones).

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

The square root of 115305312 is about 10738.0311044437. The cubic root of 115305312 is about 486.7243850561.

Adding to 115305312 its reverse (213503511), we get a palindrome (328808823).

The spelling of 115305312 in words is "one hundred fifteen million, three hundred five thousand, three hundred twelve".