115120550 has 12 divisors (see below), whose sum is σ = 214124316. Its totient is φ = 46048200.

The previous prime is 115120541. The next prime is 115120567. The reversal of 115120550 is 55021511.

It is a happy number.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1151156 + ... + 1151255.

It is an arithmetic number, because the mean of its divisors is an integer number (17843693).

Almost surely, 2^115120550 is an apocalyptic number.

115120550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115120550 is a deficient number, since it is larger than the sum of its proper divisors (99003766).

115120550 is a wasteful number, since it uses less digits than its factorization.

115120550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302423 (or 2302418 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 115120550 is about 10729.4244952840. The cubic root of 115120550 is about 486.4642749049.

The spelling of 115120550 in words is "one hundred fifteen million, one hundred twenty thousand, five hundred fifty".