115766605 has 4 divisors (see below), whose sum is σ = 138919932. Its totient is φ = 92613280.

The previous prime is 115766603. The next prime is 115766633. The reversal of 115766605 is 506667511.

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 43533604 + 72233001 = 6598^2 + 8499^2 .

It is not a de Polignac number, because 115766605 - 2¹ = 115766603 is a prime.

It is a super-4 number, since 4×115766605⁴ (a number of 33 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115766603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11576656 + ... + 11576665.

It is an arithmetic number, because the mean of its divisors is an integer number (34729983).

Almost surely, 2^115766605 is an apocalyptic number.

It is an amenable number.

115766605 is a deficient number, since it is larger than the sum of its proper divisors (23153327).

115766605 is an equidigital number, since it uses as much as digits as its factorization.

115766605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23153326.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 115766605 is about 10759.4890677950. The cubic root of 115766605 is about 487.3725882238.

It can be divided in two parts, 11576 and 6605, that added together give a palindrome (18181).

The spelling of 115766605 in words is "one hundred fifteen million, seven hundred sixty-six thousand, six hundred five".