115716645 has 48 divisors (see below), whose sum is σ = 225897984. Its totient is φ = 54288000.

The previous prime is 115716619. The next prime is 115716647. The reversal of 115716645 is 546617511.

It is a happy number.

115716645 is a `hidden beast` number, since 1 + 1 + 5 + 7 + 1 + 6 + 645 = 666.

It is not a de Polignac number, because 115716645 - 2⁵ = 115716613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115716647) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11575 + ... + 19115.

It is an arithmetic number, because the mean of its divisors is an integer number (4706208).

Almost surely, 2^115716645 is an apocalyptic number.

115716645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115716645 is a deficient number, since it is larger than the sum of its proper divisors (110181339).

115716645 is a wasteful number, since it uses less digits than its factorization.

115716645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7594 (or 7591 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 115716645 is about 10757.1671456755. The cubic root of 115716645 is about 487.3024682958.

The spelling of 115716645 in words is "one hundred fifteen million, seven hundred sixteen thousand, six hundred forty-five".