2018543 has 2 divisors, whose sum is σ = 2018544. Its totient is φ = 2018542.

The previous prime is 2018531. The next prime is 2018561. The reversal of 2018543 is 3458102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2018543 - 2⁸ = 2018287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2018573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1009271 + 1009272.

It is an arithmetic number, because the mean of its divisors is an integer number (1009272).

2^2018543 is an apocalyptic number.

2018543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2018543 is an equidigital number, since it uses as much as digits as its factorization.

2018543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2018543 is about 1420.7543770828. The cubic root of 2018543 is about 126.3802863757.

The spelling of 2018543 in words is "two million, eighteen thousand, five hundred forty-three".