115964859 has 4 divisors (see below), whose sum is σ = 154619816. Its totient is φ = 77309904.

The previous prime is 115964801. The next prime is 115964869. The reversal of 115964859 is 958469511.

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

It is not a de Polignac number, because 115964859 - 2⁷ = 115964731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115964869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19327474 + ... + 19327479.

It is an arithmetic number, because the mean of its divisors is an integer number (38654954).

Almost surely, 2^115964859 is an apocalyptic number.

115964859 is a deficient number, since it is larger than the sum of its proper divisors (38654957).

115964859 is an equidigital number, since it uses as much as digits as its factorization.

115964859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38654956.

The product of its digits is 388800, while the sum is 48.

The square root of 115964859 is about 10768.6981107281. The cubic root of 115964859 is about 487.6506432540.

The spelling of 115964859 in words is "one hundred fifteen million, nine hundred sixty-four thousand, eight hundred fifty-nine".