115717379 has 2 divisors, whose sum is σ = 115717380. Its totient is φ = 115717378.

The previous prime is 115717373. The next prime is 115717387. The reversal of 115717379 is 973717511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115717379 - 2²⁰ = 114668803 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (115717373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57858689 + 57858690.

It is an arithmetic number, because the mean of its divisors is an integer number (57858690).

Almost surely, 2^115717379 is an apocalyptic number.

115717379 is a deficient number, since it is larger than the sum of its proper divisors (1).

115717379 is an equidigital number, since it uses as much as digits as its factorization.

115717379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46305, while the sum is 41.

The square root of 115717379 is about 10757.2012624102. The cubic root of 115717379 is about 487.3034986265.

The spelling of 115717379 in words is "one hundred fifteen million, seven hundred seventeen thousand, three hundred seventy-nine".