118743 has 4 divisors (see below), whose sum is σ = 158328. Its totient is φ = 79160.

The previous prime is 118739. The next prime is 118747. The reversal of 118743 is 347811.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (118739) and next prime (118747).

It is a cyclic number.

It is not a de Polignac number, because 118743 - 2² = 118739 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118747) 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 3 ways as a sum of consecutive naturals, for example, 19788 + ... + 19793.

It is an arithmetic number, because the mean of its divisors is an integer number (39582).

2¹¹⁸⁷⁴³ is an apocalyptic number.

118743 is a deficient number, since it is larger than the sum of its proper divisors (39585).

118743 is an equidigital number, since it uses as much as digits as its factorization.

118743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39584.

The product of its digits is 672, while the sum is 24.

The square root of 118743 is about 344.5910619851. The cubic root of 118743 is about 49.1514128045.

It can be divided in two parts, 118 and 743, that added together give a triangular number (861 = T₄₁).

The spelling of 118743 in words is "one hundred eighteen thousand, seven hundred forty-three".