115769917 has 2 divisors, whose sum is σ = 115769918. Its totient is φ = 115769916.

The previous prime is 115769851. The next prime is 115769921. The reversal of 115769917 is 719967511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112763161 + 3006756 = 10619^2 + 1734^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115769917 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115709917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57884958 + 57884959.

It is an arithmetic number, because the mean of its divisors is an integer number (57884959).

Almost surely, 2^115769917 is an apocalyptic number.

It is an amenable number.

115769917 is a deficient number, since it is larger than the sum of its proper divisors (1).

115769917 is an equidigital number, since it uses as much as digits as its factorization.

115769917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 119070, while the sum is 46.

The square root of 115769917 is about 10759.6429773483. The cubic root of 115769917 is about 487.3772359735.

The spelling of 115769917 in words is "one hundred fifteen million, seven hundred sixty-nine thousand, nine hundred seventeen".