115100140 has 24 divisors (see below), whose sum is σ = 244429920. Its totient is φ = 45522048.

The previous prime is 115100087. The next prime is 115100147. The reversal of 115100140 is 41001511.

It is a self number, because there is not a number n which added to its sum of digits gives 115100140.

It is not an unprimeable number, because it can be changed into a prime (115100147) 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, 30552 + ... + 34111.

It is an arithmetic number, because the mean of its divisors is an integer number (10184580).

Almost surely, 2^115100140 is an apocalyptic number.

115100140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115100140 is an abundant number, since it is smaller than the sum of its proper divisors (129329780).

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

115100140 is a wasteful number, since it uses less digits than its factorization.

115100140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64761 (or 64759 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 115100140 is about 10728.4733303485. The cubic root of 115100140 is about 486.4355243975.

Adding to 115100140 its reverse (41001511), we get a palindrome (156101651).

The spelling of 115100140 in words is "one hundred fifteen million, one hundred thousand, one hundred forty".