115663577 has 4 divisors (see below), whose sum is σ = 115688100. Its totient is φ = 115639056.

The previous prime is 115663567. The next prime is 115663589. The reversal of 115663577 is 775366511.

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 65593801 + 50069776 = 8099^2 + 7076^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115663577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115663547) 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, 2702 + ... + 15447.

It is an arithmetic number, because the mean of its divisors is an integer number (28922025).

Almost surely, 2^115663577 is an apocalyptic number.

It is an amenable number.

115663577 is a deficient number, since it is larger than the sum of its proper divisors (24523).

115663577 is an equidigital number, since it uses as much as digits as its factorization.

115663577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24522.

The product of its digits is 132300, while the sum is 41.

The square root of 115663577 is about 10754.7002282723. The cubic root of 115663577 is about 487.2279641148.

The spelling of 115663577 in words is "one hundred fifteen million, six hundred sixty-three thousand, five hundred seventy-seven".