115945778 has 32 divisors (see below), whose sum is σ = 192265920. Its totient is φ = 52113600.

The previous prime is 115945777. The next prime is 115945787. The reversal of 115945778 is 877549511.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (115945777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175613 + ... + 176271.

It is an arithmetic number, because the mean of its divisors is an integer number (6008310).

Almost surely, 2^115945778 is an apocalyptic number.

115945778 is a deficient number, since it is larger than the sum of its proper divisors (76320142).

115945778 is a wasteful number, since it uses less digits than its factorization.

115945778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842.

The product of its digits is 352800, while the sum is 47.

The square root of 115945778 is about 10767.8121268900. The cubic root of 115945778 is about 487.6238955754.

The spelling of 115945778 in words is "one hundred fifteen million, nine hundred forty-five thousand, seven hundred seventy-eight".