115501224 has 32 divisors (see below), whose sum is σ = 290700000. Its totient is φ = 38240832.

The previous prime is 115501219. The next prime is 115501249. The reversal of 115501224 is 422105511.

It is a self number, because there is not a number n which added to its sum of digits gives 115501224.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12574 + ... + 19725.

It is an arithmetic number, because the mean of its divisors is an integer number (9084375).

Almost surely, 2^115501224 is an apocalyptic number.

It is an amenable number.

115501224 is an abundant number, since it is smaller than the sum of its proper divisors (175198776).

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

115501224 is a wasteful number, since it uses less digits than its factorization.

115501224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32457 (or 32453 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 115501224 is about 10747.1495755851. The cubic root of 115501224 is about 486.9998889680. Note that the first 3 decimals are identical.

Adding to 115501224 its reverse (422105511), we get a palindrome (537606735).

The spelling of 115501224 in words is "one hundred fifteen million, five hundred one thousand, two hundred twenty-four".