118278 has 12 divisors (see below), whose sum is σ = 256308. Its totient is φ = 39420.

The previous prime is 118277. The next prime is 118297. The reversal of 118278 is 872811.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3268 + ... + 3303.

It is an arithmetic number, because the mean of its divisors is an integer number (21359).

2¹¹⁸²⁷⁸ is an apocalyptic number.

118278 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

118278 is an abundant number, since it is smaller than the sum of its proper divisors (138030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118278 is a wasteful number, since it uses less digits than its factorization.

118278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6579 (or 6576 counting only the distinct ones).

The product of its digits is 896, while the sum is 27.

The square root of 118278 is about 343.9156873421. The cubic root of 118278 is about 49.0871695618.

The spelling of 118278 in words is "one hundred eighteen thousand, two hundred seventy-eight".