2003144543 has 4 divisors (see below), whose sum is σ = 2090237808. Its totient is φ = 1916051280.

The previous prime is 2003144537. The next prime is 2003144567. The reversal of 2003144543 is 3454413002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3454413002 = 2 ⋅1727206501.

It is a cyclic number.

It is not a de Polignac number, because 2003144543 - 2¹⁴ = 2003128159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003140543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43546598 + ... + 43546643.

It is an arithmetic number, because the mean of its divisors is an integer number (522559452).

Almost surely, 2^2003144543 is an apocalyptic number.

2003144543 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2003144543 is a deficient number, since it is larger than the sum of its proper divisors (87093265).

2003144543 is an equidigital number, since it uses as much as digits as its factorization.

2003144543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87093264.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 2003144543 is about 44756.5028012690. The cubic root of 2003144543 is about 1260.5810167862.

Adding to 2003144543 its reverse (3454413002), we get a palindrome (5457557545).

The spelling of 2003144543 in words is "two billion, three million, one hundred forty-four thousand, five hundred forty-three".