115275312 has 70 divisors (see below), whose sum is σ = 334899572. Its totient is φ = 38421216.

The previous prime is 115275311. The next prime is 115275331. The reversal of 115275312 is 213572511.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (115275311) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 6723 + ... + 16605.

Almost surely, 2^115275312 is an apocalyptic number.

115275312 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 115275312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167449786).

115275312 is an abundant number, since it is smaller than the sum of its proper divisors (219624260).

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

115275312 is an frugal number, since it uses more digits than its factorization.

115275312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9909 (or 9888 counting only the distinct ones).

The product of its digits is 2100, while the sum is 27.

The square root of 115275312 is about 10736.6341094404. The cubic root of 115275312 is about 486.6821696027.

The spelling of 115275312 in words is "one hundred fifteen million, two hundred seventy-five thousand, three hundred twelve".