115665472 has 28 divisors (see below), whose sum is σ = 247181116. Its totient is φ = 53383680.

The previous prime is 115665457. The next prime is 115665481. The reversal of 115665472 is 274566511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 44836416 + 70829056 = 6696^2 + 8416^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68679 + ... + 70342.

It is an arithmetic number, because the mean of its divisors is an integer number (8827897).

Almost surely, 2^115665472 is an apocalyptic number.

It is an amenable number.

115665472 is an abundant number, since it is smaller than the sum of its proper divisors (131515644).

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

115665472 is a wasteful number, since it uses less digits than its factorization.

115665472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139046 (or 139036 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 115665472 is about 10754.7883289259. The cubic root of 115665472 is about 487.2306249696.

The spelling of 115665472 in words is "one hundred fifteen million, six hundred sixty-five thousand, four hundred seventy-two".