115220992 has 40 divisors (see below), whose sum is σ = 232016400. Its totient is φ = 57160704.

The previous prime is 115220983. The next prime is 115220999. The reversal of 115220992 is 299022511.

It is not an unprimeable number, because it can be changed into a prime (115220999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70359 + ... + 71977.

It is an arithmetic number, because the mean of its divisors is an integer number (5800410).

Almost surely, 2^115220992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115220992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116008200).

115220992 is an abundant number, since it is smaller than the sum of its proper divisors (116795408).

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

115220992 is an equidigital number, since it uses as much as digits as its factorization.

115220992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776 (or 1760 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 115220992 is about 10734.1041545161. The cubic root of 115220992 is about 486.6057128472.

The spelling of 115220992 in words is "one hundred fifteen million, two hundred twenty thousand, nine hundred ninety-two".