115612880 has 20 divisors (see below), whose sum is σ = 268800132. Its totient is φ = 46245120.

The previous prime is 115612829. The next prime is 115612883. The reversal of 115612880 is 88216511.

It can be written as a sum of positive squares in 2 ways, for example, as 14167696 + 101445184 = 3764^2 + 10072^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115612883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722501 + ... + 722660.

Almost surely, 2^115612880 is an apocalyptic number.

115612880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115612880 is an abundant number, since it is smaller than the sum of its proper divisors (153187252).

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

115612880 is a wasteful number, since it uses less digits than its factorization.

115612880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445174 (or 1445168 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 32.

The square root of 115612880 is about 10752.3430004813. The cubic root of 115612880 is about 487.1567673833.

It can be divided in two parts, 11561 and 2880, that added together give a palindrome (14441).

The spelling of 115612880 in words is "one hundred fifteen million, six hundred twelve thousand, eight hundred eighty".