115135140 has 24 divisors (see below), whose sum is σ = 322378560. Its totient is φ = 30702688.

The previous prime is 115135109. The next prime is 115135159. The reversal of 115135140 is 41531511.

It is a happy number.

It is a super-2 number, since 2×115135140² = 26512200925639200, which contains 22 as substring.

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, 959400 + ... + 959519.

It is an arithmetic number, because the mean of its divisors is an integer number (13432440).

Almost surely, 2^115135140 is an apocalyptic number.

115135140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115135140 is an abundant number, since it is smaller than the sum of its proper divisors (207243420).

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

115135140 is a wasteful number, since it uses less digits than its factorization.

115135140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918931 (or 1918929 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 115135140 is about 10730.1043797346. The cubic root of 115135140 is about 486.4848249977.

Adding to 115135140 its reverse (41531511), we get a palindrome (156666651).

It can be divided in two parts, 11513 and 5140, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 115135140 in words is "one hundred fifteen million, one hundred thirty-five thousand, one hundred forty".