115618636 has 72 divisors (see below), whose sum is σ = 245624400. Its totient is φ = 47440512.

The previous prime is 115618619. The next prime is 115618663. The reversal of 115618636 is 636816511.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 115618595 and 115618604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 775890 + ... + 776038.

It is an arithmetic number, because the mean of its divisors is an integer number (3411450).

Almost surely, 2^115618636 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 115618636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122812200).

115618636 is an abundant number, since it is smaller than the sum of its proper divisors (130005764).

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

115618636 is a wasteful number, since it uses less digits than its factorization.

115618636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 302 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

The square root of 115618636 is about 10752.6106597421. The cubic root of 115618636 is about 487.1648519145.

The spelling of 115618636 in words is "one hundred fifteen million, six hundred eighteen thousand, six hundred thirty-six".