118366 has 4 divisors (see below), whose sum is σ = 177552. Its totient is φ = 59182.

The previous prime is 118361. The next prime is 118369. The reversal of 118366 is 663811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 663811 = 347 ⋅1913.

It is a self number, because there is not a number n which added to its sum of digits gives 118366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29590 + ... + 29593.

It is an arithmetic number, because the mean of its divisors is an integer number (44388).

2¹¹⁸³⁶⁶ is an apocalyptic number.

118366 is a deficient number, since it is larger than the sum of its proper divisors (59186).

118366 is an equidigital number, since it uses as much as digits as its factorization.

118366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59185.

The product of its digits is 864, while the sum is 25.

The square root of 118366 is about 344.0436018879. The cubic root of 118366 is about 49.0993403235.

Subtracting from 118366 its sum of digits (25), we obtain a triangular number (118341 = T₄₈₆).

It can be divided in two parts, 118 and 366, that added together give a palindrome (484).

The spelling of 118366 in words is "one hundred eighteen thousand, three hundred sixty-six".