115327521 has 6 divisors (see below), whose sum is σ = 166584210. Its totient is φ = 76885008.

The previous prime is 115327493. The next prime is 115327529. The reversal of 115327521 is 125723511.

115327521 is a `hidden beast` number, since 115 + 3 + 27 + 521 = 666.

It can be written as a sum of positive squares in only one way, i.e., 109495296 + 5832225 = 10464^2 + 2415^2 .

It is not a de Polignac number, because 115327521 - 2¹³ = 115319329 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (115327529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6407076 + ... + 6407093.

It is an arithmetic number, because the mean of its divisors is an integer number (27764035).

Almost surely, 2^115327521 is an apocalyptic number.

It is an amenable number.

115327521 is a deficient number, since it is larger than the sum of its proper divisors (51256689).

115327521 is a wasteful number, since it uses less digits than its factorization.

115327521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12814175 (or 12814172 counting only the distinct ones).

The product of its digits is 2100, while the sum is 27.

The square root of 115327521 is about 10739.0651827801. The cubic root of 115327521 is about 486.7556324397.

The spelling of 115327521 in words is "one hundred fifteen million, three hundred twenty-seven thousand, five hundred twenty-one".