115945779 has 4 divisors (see below), whose sum is σ = 154594376. Its totient is φ = 77297184.

The previous prime is 115945777. The next prime is 115945787. The reversal of 115945779 is 977549511.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 115945779 - 2¹ = 115945777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115945777) 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, 19324294 + ... + 19324299.

It is an arithmetic number, because the mean of its divisors is an integer number (38648594).

Almost surely, 2^115945779 is an apocalyptic number.

115945779 is a deficient number, since it is larger than the sum of its proper divisors (38648597).

115945779 is an equidigital number, since it uses as much as digits as its factorization.

115945779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38648596.

The product of its digits is 396900, while the sum is 48.

The square root of 115945779 is about 10767.8121733247. The cubic root of 115945779 is about 487.6238969773.

The spelling of 115945779 in words is "one hundred fifteen million, nine hundred forty-five thousand, seven hundred seventy-nine".