115450220 has 12 divisors (see below), whose sum is σ = 242445504. Its totient is φ = 46180080.

The previous prime is 115450217. The next prime is 115450229. The reversal of 115450220 is 22054511.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 5772511 = 115450220 / (1 + 1 + 5 + 4 + 5 + 0 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 115450192 and 115450201.

It is not an unprimeable number, because it can be changed into a prime (115450229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2886236 + ... + 2886275.

It is an arithmetic number, because the mean of its divisors is an integer number (20203792).

Almost surely, 2^115450220 is an apocalyptic number.

115450220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115450220 is an abundant number, since it is smaller than the sum of its proper divisors (126995284).

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

115450220 is a wasteful number, since it uses less digits than its factorization.

115450220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5772520 (or 5772518 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 115450220 is about 10744.7764053050. The cubic root of 115450220 is about 486.9281939142.

The spelling of 115450220 in words is "one hundred fifteen million, four hundred fifty thousand, two hundred twenty".