115105240 has 16 divisors (see below), whose sum is σ = 258986880. Its totient is φ = 46042080.

The previous prime is 115105223. The next prime is 115105267. The reversal of 115105240 is 42501511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1438776 + ... + 1438855.

It is an arithmetic number, because the mean of its divisors is an integer number (16186680).

Almost surely, 2^115105240 is an apocalyptic number.

115105240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115105240 is an abundant number, since it is smaller than the sum of its proper divisors (143881640).

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

115105240 is a wasteful number, since it uses less digits than its factorization.

115105240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2877642 (or 2877638 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 115105240 is about 10728.7110129782. The cubic root of 115105240 is about 486.4427088212.

Adding to 115105240 its reverse (42501511), we get a palindrome (157606751).

The spelling of 115105240 in words is "one hundred fifteen million, one hundred five thousand, two hundred forty".