115275840 has 56 divisors (see below), whose sum is σ = 366003840. Its totient is φ = 30739968.

The previous prime is 115275817. The next prime is 115275851. The reversal of 115275840 is 48572511.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59080 + ... + 60999.

Almost surely, 2^115275840 is an apocalyptic number.

115275840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115275840 is an abundant number, since it is smaller than the sum of its proper divisors (250728000).

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

115275840 is a wasteful number, since it uses less digits than its factorization.

115275840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120099 (or 120089 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 115275840 is about 10736.6586981239. The cubic root of 115275840 is about 486.6829126580.

The spelling of 115275840 in words is "one hundred fifteen million, two hundred seventy-five thousand, eight hundred forty".