543043 has 4 divisors (see below), whose sum is σ = 544720. Its totient is φ = 541368.

The previous prime is 543029. The next prime is 543061. The reversal of 543043 is 340345.

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

It is a cyclic number.

It is not a de Polignac number, because 543043 - 2¹³ = 534851 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 543043.

It is not an unprimeable number, because it can be changed into a prime (543143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180 + ... + 1057.

It is an arithmetic number, because the mean of its divisors is an integer number (136180).

2⁵⁴³⁰⁴³ is an apocalyptic number.

543043 is a deficient number, since it is larger than the sum of its proper divisors (1677).

543043 is a wasteful number, since it uses less digits than its factorization.

543043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 543043 is about 736.9145133596. The cubic root of 543043 is about 81.5852045295.

Adding to 543043 its reverse (340345), we get a palindrome (883388).

The spelling of 543043 in words is "five hundred forty-three thousand, forty-three".