115551772 has 24 divisors (see below), whose sum is σ = 233229920. Its totient is φ = 49066560.

The previous prime is 115551767. The next prime is 115551781. The reversal of 115551772 is 277155511.

It is a congruent number.

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, 15879 + ... + 21982.

Almost surely, 2^115551772 is an apocalyptic number.

It is an amenable number.

115551772 is an abundant number, since it is smaller than the sum of its proper divisors (117678148).

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

115551772 is a wasteful number, since it uses less digits than its factorization.

115551772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37981 (or 37979 counting only the distinct ones).

The product of its digits is 12250, while the sum is 34.

The square root of 115551772 is about 10749.5010116749. The cubic root of 115551772 is about 487.0709222128.

The spelling of 115551772 in words is "one hundred fifteen million, five hundred fifty-one thousand, seven hundred seventy-two".