2003534543 has 2 divisors, whose sum is σ = 2003534544. Its totient is φ = 2003534542.

The previous prime is 2003534539. The next prime is 2003534551. The reversal of 2003534543 is 3454353002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2003534543 - 2² = 2003534539 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2003534503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001767271 + 1001767272.

It is an arithmetic number, because the mean of its divisors is an integer number (1001767272).

Almost surely, 2^2003534543 is an apocalyptic number.

2003534543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003534543 is an equidigital number, since it uses as much as digits as its factorization.

2003534543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 29.

The square root of 2003534543 is about 44760.8594980034. The cubic root of 2003534543 is about 1260.6628206175.

Adding to 2003534543 its reverse (3454353002), we get a palindrome (5457887545).

The spelling of 2003534543 in words is "two billion, three million, five hundred thirty-four thousand, five hundred forty-three".