115716605 has 4 divisors (see below), whose sum is σ = 138859932. Its totient is φ = 92573280.

The previous prime is 115716553. The next prime is 115716613. The reversal of 115716605 is 506617511.

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 47637604 + 68079001 = 6902^2 + 8251^2 .

It is not a de Polignac number, because 115716605 - 2¹⁰ = 115715581 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent 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, 11571656 + ... + 11571665.

It is an arithmetic number, because the mean of its divisors is an integer number (34714983).

Almost surely, 2^115716605 is an apocalyptic number.

It is an amenable number.

115716605 is a deficient number, since it is larger than the sum of its proper divisors (23143327).

115716605 is an equidigital number, since it uses as much as digits as its factorization.

115716605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23143326.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 115716605 is about 10757.1652864498. The cubic root of 115716605 is about 487.3024121468.

The spelling of 115716605 in words is "one hundred fifteen million, seven hundred sixteen thousand, six hundred five".