115615650 has 24 divisors (see below), whose sum is σ = 286727184. Its totient is φ = 30830800.

The previous prime is 115615649. The next prime is 115615651. The reversal of 115615650 is 56516511.

It is an interprime number because it is at equal distance from previous prime (115615649) and next prime (115615651).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (115615651) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 385236 + ... + 385535.

It is an arithmetic number, because the mean of its divisors is an integer number (11946966).

Almost surely, 2^115615650 is an apocalyptic number.

115615650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115615650 is an abundant number, since it is smaller than the sum of its proper divisors (171111534).

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

115615650 is a wasteful number, since it uses less digits than its factorization.

115615650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770786 (or 770781 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 115615650 is about 10752.4718088447. The cubic root of 115615650 is about 487.1606579921.

The spelling of 115615650 in words is "one hundred fifteen million, six hundred fifteen thousand, six hundred fifty".