115125220 has 24 divisors (see below), whose sum is σ = 276300864. Its totient is φ = 39471456.

The previous prime is 115125211. The next prime is 115125223. The reversal of 115125220 is 22521511.

It is not an unprimeable number, because it can be changed into a prime (115125223) 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, 411022 + ... + 411301.

It is an arithmetic number, because the mean of its divisors is an integer number (11512536).

Almost surely, 2^115125220 is an apocalyptic number.

115125220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115125220 is an abundant number, since it is smaller than the sum of its proper divisors (161175644).

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

115125220 is a wasteful number, since it uses less digits than its factorization.

115125220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822339 (or 822337 counting only the distinct ones).

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

The square root of 115125220 is about 10729.6421189152. The cubic root of 115125220 is about 486.4708528137.

Adding to 115125220 its reverse (22521511), we get a palindrome (137646731).

The spelling of 115125220 in words is "one hundred fifteen million, one hundred twenty-five thousand, two hundred twenty".