115385521 has 12 divisors (see below), whose sum is σ = 119838096. Its totient is φ = 111080480.

The previous prime is 115385497. The next prime is 115385527. The reversal of 115385521 is 125583511.

It is not a de Polignac number, because 115385521 - 2⁵ = 115385489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115385527) 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, 139110 + ... + 139936.

It is an arithmetic number, because the mean of its divisors is an integer number (9986508).

Almost surely, 2^115385521 is an apocalyptic number.

It is an amenable number.

115385521 is a deficient number, since it is larger than the sum of its proper divisors (4452575).

115385521 is an frugal number, since it uses more digits than its factorization.

115385521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992 (or 951 counting only the distinct ones).

The product of its digits is 6000, while the sum is 31.

The square root of 115385521 is about 10741.7652646108. The cubic root of 115385521 is about 486.8372177514.

The spelling of 115385521 in words is "one hundred fifteen million, three hundred eighty-five thousand, five hundred twenty-one".