113515612577 has 2 divisors, whose sum is σ = 113515612578. Its totient is φ = 113515612576.

The previous prime is 113515612549. The next prime is 113515612579. The reversal of 113515612577 is 775216515311.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101613675361 + 11901937216 = 318769^2 + 109096^2 .

It is a cyclic number.

It is not a de Polignac number, because 113515612577 - 2⁶ = 113515612513 is a prime.

Together with 113515612579, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (113515612579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56757806288 + 56757806289.

It is an arithmetic number, because the mean of its divisors is an integer number (56757806289).

Almost surely, 2^113515612577 is an apocalyptic number.

It is an amenable number.

113515612577 is a deficient number, since it is larger than the sum of its proper divisors (1).

113515612577 is an equidigital number, since it uses as much as digits as its factorization.

113515612577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 220500, while the sum is 44.

The spelling of 113515612577 in words is "one hundred thirteen billion, five hundred fifteen million, six hundred twelve thousand, five hundred seventy-seven".