115230220 has 96 divisors (see below), whose sum is σ = 285981696. Its totient is φ = 38188800.

The previous prime is 115230191. The next prime is 115230221. The reversal of 115230220 is 22032511.

It is a junction number, because it is equal to n+sod(n) for n = 115230194 and 115230203.

It is not an unprimeable number, because it can be changed into a prime (115230221) 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 31 ways as a sum of consecutive naturals, for example, 879555 + ... + 879685.

It is an arithmetic number, because the mean of its divisors is an integer number (2978976).

Almost surely, 2^115230220 is an apocalyptic number.

115230220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115230220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142990848).

115230220 is an abundant number, since it is smaller than the sum of its proper divisors (170751476).

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

115230220 is a wasteful number, since it uses less digits than its factorization.

115230220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 115230220 is about 10734.5339908167. The cubic root of 115230220 is about 486.6187031816.

Adding to 115230220 its reverse (22032511), we get a palindrome (137262731).

The spelling of 115230220 in words is "one hundred fifteen million, two hundred thirty thousand, two hundred twenty".