115012224 has 80 divisors (see below), whose sum is σ = 342305370. Its totient is φ = 38333952.

The previous prime is 115012223. The next prime is 115012277. The reversal of 115012224 is 422210511.

It can be written as a sum of positive squares in only one way, i.e., 81000000 + 34012224 = 9000^2 + 5832^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 115012197 and 115012206.

It is not an unprimeable number, because it can be changed into a prime (115012223) 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 9 ways as a sum of consecutive naturals, for example, 4822 + ... + 15914.

Almost surely, 2^115012224 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 115012224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171152685).

115012224 is an abundant number, since it is smaller than the sum of its proper divisors (227293146).

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

115012224 is an equidigital number, since it uses as much as digits as its factorization.

115012224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11119 (or 11098 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 115012224 is about 10724.3752265575. The cubic root of 115012224 is about 486.3116428262.

Adding to 115012224 its reverse (422210511), we get a palindrome (537222735).

The spelling of 115012224 in words is "one hundred fifteen million, twelve thousand, two hundred twenty-four".