118243 has 8 divisors (see below), whose sum is σ = 127008. Its totient is φ = 109824.

The previous prime is 118219. The next prime is 118247. The reversal of 118243 is 342811.

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

It is a cyclic number.

It is not a de Polignac number, because 118243 - 2⁵ = 118211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118243.

It is not an unprimeable number, because it can be changed into a prime (118247) 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 in 7 ways as a sum of consecutive naturals, for example, 1171 + ... + 1267.

It is an arithmetic number, because the mean of its divisors is an integer number (15876).

2¹¹⁸²⁴³ is an apocalyptic number.

118243 is a deficient number, since it is larger than the sum of its proper divisors (8765).

118243 is an equidigital number, since it uses as much as digits as its factorization.

118243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173.

The product of its digits is 192, while the sum is 19.

The square root of 118243 is about 343.8647990126. The cubic root of 118243 is about 49.0823272399.

It can be divided in two parts, 1182 and 43, that added together give a triangular number (1225 = T₄₉).

The spelling of 118243 in words is "one hundred eighteen thousand, two hundred forty-three".