115256140 has 24 divisors (see below), whose sum is σ = 249846912. Its totient is φ = 44615040.

The previous prime is 115256137. The next prime is 115256143. The reversal of 115256140 is 41652511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (115256137) and next prime (115256143).

It is not an unprimeable number, because it can be changed into a prime (115256143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92329 + ... + 93568.

It is an arithmetic number, because the mean of its divisors is an integer number (10410288).

Almost surely, 2^115256140 is an apocalyptic number.

115256140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115256140 is an abundant number, since it is smaller than the sum of its proper divisors (134590772).

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

115256140 is a wasteful number, since it uses less digits than its factorization.

115256140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185937 (or 185935 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 115256140 is about 10735.7412412930. The cubic root of 115256140 is about 486.6551872774.

The spelling of 115256140 in words is "one hundred fifteen million, two hundred fifty-six thousand, one hundred forty".