115650565 has 4 divisors (see below), whose sum is σ = 138780684. Its totient is φ = 92520448.

The previous prime is 115650559. The next prime is 115650581. The reversal of 115650565 is 565056511.

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 44315649 + 71334916 = 6657^2 + 8446^2 .

It is a cyclic number.

It is not a de Polignac number, because 115650565 - 2⁵ = 115650533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115650565.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11565052 + ... + 11565061.

It is an arithmetic number, because the mean of its divisors is an integer number (34695171).

Almost surely, 2^115650565 is an apocalyptic number.

It is an amenable number.

115650565 is a deficient number, since it is larger than the sum of its proper divisors (23130119).

115650565 is an equidigital number, since it uses as much as digits as its factorization.

115650565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23130118.

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 115650565 is about 10754.0952664555. The cubic root of 115650565 is about 487.2096925950.

The spelling of 115650565 in words is "one hundred fifteen million, six hundred fifty thousand, five hundred sixty-five".