115320825 has 18 divisors (see below), whose sum is σ = 206552814. Its totient is φ = 61504320.

The previous prime is 115320817. The next prime is 115320839. The reversal of 115320825 is 528023511.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 166464 + 115154361 = 408^2 + 10731^2 .

It is not a de Polignac number, because 115320825 - 2³ = 115320817 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 256044 + ... + 256493.

Almost surely, 2^115320825 is an apocalyptic number.

115320825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115320825 is a deficient number, since it is larger than the sum of its proper divisors (91231989).

115320825 is a wasteful number, since it uses less digits than its factorization.

115320825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512553 (or 512545 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 115320825 is about 10738.7534192754. The cubic root of 115320825 is about 486.7462117950.

The spelling of 115320825 in words is "one hundred fifteen million, three hundred twenty thousand, eight hundred twenty-five".