115682815 has 4 divisors (see below), whose sum is σ = 138819384. Its totient is φ = 92546248.

The previous prime is 115682813. The next prime is 115682863. The reversal of 115682815 is 518286511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 518286511 = 151 ⋅3432361.

It is a cyclic number.

It is not a de Polignac number, because 115682815 - 2¹ = 115682813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115682813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11568277 + ... + 11568286.

It is an arithmetic number, because the mean of its divisors is an integer number (34704846).

Almost surely, 2^115682815 is an apocalyptic number.

115682815 is a deficient number, since it is larger than the sum of its proper divisors (23136569).

115682815 is an equidigital number, since it uses as much as digits as its factorization.

115682815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23136568.

The product of its digits is 19200, while the sum is 37.

The square root of 115682815 is about 10755.5945907235. The cubic root of 115682815 is about 487.2549757065.

The spelling of 115682815 in words is "one hundred fifteen million, six hundred eighty-two thousand, eight hundred fifteen".