2004543 has 12 divisors (see below), whose sum is σ = 2937168. Its totient is φ = 1317120.

The previous prime is 2004539. The next prime is 2004559. The reversal of 2004543 is 3454002.

It is a happy number.

It is not a de Polignac number, because 2004543 - 2² = 2004539 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004593) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 930 + ... + 2207.

It is an arithmetic number, because the mean of its divisors is an integer number (244764).

2^2004543 is an apocalyptic number.

2004543 is a deficient number, since it is larger than the sum of its proper divisors (932625).

2004543 is a wasteful number, since it uses less digits than its factorization.

2004543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3214 (or 3211 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 2004543 is about 1415.8188443441. The cubic root of 2004543 is about 126.0874298712.

Adding to 2004543 its reverse (3454002), we get a palindrome (5458545).

The spelling of 2004543 in words is "two million, four thousand, five hundred forty-three".