115915072 has 84 divisors (see below), whose sum is σ = 284841696. Its totient is φ = 45826560.

The previous prime is 115915031. The next prime is 115915073. The reversal of 115915072 is 270519511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115915073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74947 + ... + 76477.

Almost surely, 2^115915072 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 115915072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142420848).

115915072 is an abundant number, since it is smaller than the sum of its proper divisors (168926624).

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

115915072 is a wasteful number, since it uses less digits than its factorization.

115915072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576 (or 1553 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 31.

The square root of 115915072 is about 10766.3862089375. The cubic root of 115915072 is about 487.5808458512.

The spelling of 115915072 in words is "one hundred fifteen million, nine hundred fifteen thousand, seventy-two".