115031977 has 2 divisors, whose sum is σ = 115031978. Its totient is φ = 115031976.

The previous prime is 115031933. The next prime is 115032007. The reversal of 115031977 is 779130511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109746576 + 5285401 = 10476^2 + 2299^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115031977 is a prime.

It is not a weakly prime, because it can be changed into another prime (115032977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57515988 + 57515989.

It is an arithmetic number, because the mean of its divisors is an integer number (57515989).

Almost surely, 2^115031977 is an apocalyptic number.

It is an amenable number.

115031977 is a deficient number, since it is larger than the sum of its proper divisors (1).

115031977 is an equidigital number, since it uses as much as digits as its factorization.

115031977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6615, while the sum is 34.

The square root of 115031977 is about 10725.2961264480. The cubic root of 115031977 is about 486.3394820815.

The spelling of 115031977 in words is "one hundred fifteen million, thirty-one thousand, nine hundred seventy-seven".