118543 has 2 divisors, whose sum is σ = 118544. Its totient is φ = 118542.

The previous prime is 118529. The next prime is 118549. The reversal of 118543 is 345811.

It is a strong prime.

It is an emirp because it is prime and its reverse (345811) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118543 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118549) 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, 59271 + 59272.

It is an arithmetic number, because the mean of its divisors is an integer number (59272).

118543 is a Friedman number, since it can be written as (84^3+11)/5, using all its digits and the basic arithmetic operations.

2¹¹⁸⁵⁴³ is an apocalyptic number.

118543 is a deficient number, since it is larger than the sum of its proper divisors (1).

118543 is an equidigital number, since it uses as much as digits as its factorization.

118543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 480, while the sum is 22.

The square root of 118543 is about 344.3007406324. The cubic root of 118543 is about 49.1238018946.

The spelling of 118543 in words is "one hundred eighteen thousand, five hundred forty-three".