118778 has 8 divisors (see below), whose sum is σ = 194400. Its totient is φ = 53980.

The previous prime is 118757. The next prime is 118787. The reversal of 118778 is 877811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2678 + ... + 2721.

It is an arithmetic number, because the mean of its divisors is an integer number (24300).

2¹¹⁸⁷⁷⁸ is an apocalyptic number.

118778 is a deficient number, since it is larger than the sum of its proper divisors (75622).

118778 is a wasteful number, since it uses less digits than its factorization.

118778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5412.

The product of its digits is 3136, while the sum is 32.

The square root of 118778 is about 344.6418430777. The cubic root of 118778 is about 49.1562415255.

The spelling of 118778 in words is "one hundred eighteen thousand, seven hundred seventy-eight".