115628665 has 4 divisors (see below), whose sum is σ = 138754404. Its totient is φ = 92502928.

The previous prime is 115628657. The next prime is 115628687. The reversal of 115628665 is 566826511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32216976 + 83411689 = 5676^2 + 9133^2 .

It is a cyclic number.

It is not a de Polignac number, because 115628665 - 2³ = 115628657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11562862 + ... + 11562871.

It is an arithmetic number, because the mean of its divisors is an integer number (34688601).

Almost surely, 2^115628665 is an apocalyptic number.

It is an amenable number.

115628665 is a deficient number, since it is larger than the sum of its proper divisors (23125739).

115628665 is an equidigital number, since it uses as much as digits as its factorization.

115628665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23125738.

The product of its digits is 86400, while the sum is 40.

The square root of 115628665 is about 10753.0770014912. The cubic root of 115628665 is about 487.1789374034.

The spelling of 115628665 in words is "one hundred fifteen million, six hundred twenty-eight thousand, six hundred sixty-five".