115102140 has 48 divisors (see below), whose sum is σ = 325624992. Its totient is φ = 30375936.

The previous prime is 115102109. The next prime is 115102157. The reversal of 115102140 is 41201511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4069 + ... + 15708.

It is an arithmetic number, because the mean of its divisors is an integer number (6783854).

Almost surely, 2^115102140 is an apocalyptic number.

115102140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115102140 is an abundant number, since it is smaller than the sum of its proper divisors (210522852).

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

115102140 is a wasteful number, since it uses less digits than its factorization.

115102140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19886 (or 19884 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 115102140 is about 10728.5665398505. The cubic root of 115102140 is about 486.4383418438.

Adding to 115102140 its reverse (41201511), we get a palindrome (156303651).

The spelling of 115102140 in words is "one hundred fifteen million, one hundred two thousand, one hundred forty".