115223144 has 96 divisors (see below), whose sum is σ = 251248800. Its totient is φ = 49351680.

The previous prime is 115223111. The next prime is 115223149. The reversal of 115223144 is 441322511.

It is not an unprimeable number, because it can be changed into a prime (115223149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1888874 + ... + 1888934.

It is an arithmetic number, because the mean of its divisors is an integer number (2617175).

Almost surely, 2^115223144 is an apocalyptic number.

It is an amenable number.

115223144 is an abundant number, since it is smaller than the sum of its proper divisors (136025656).

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

115223144 is a wasteful number, since it uses less digits than its factorization.

115223144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 142 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 115223144 is about 10734.2043952964. The cubic root of 115223144 is about 486.6087422980.

Adding to 115223144 its reverse (441322511), we get a palindrome (556545655).

The spelling of 115223144 in words is "one hundred fifteen million, two hundred twenty-three thousand, one hundred forty-four".