2043 has 6 divisors (see below), whose sum is σ = 2964.
Its totient is φ = 1356.
The previous prime is 2039. The next prime is 2053. The reversal of 2043 is 3402.
2043 is nontrivially palindromic in base 8.
It is not a de Polignac number, because 2043 - 22 = 2039 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 227 = 2043 / (2 + 0 + 4 + 3).
It is a plaindrome in base 12.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 2043.
It is not an unprimeable number, because it can be changed into a prime (2003) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 105 + ... + 122.
It is an arithmetic number, because the mean of its divisors is an integer number (494).
22043 is an apocalyptic number.
2043 is a deficient number, since it is larger than the sum of its proper divisors (921).
2043 is a wasteful number, since it uses less digits than its factorization.
2043 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 233 (or 230 counting only the distinct ones).
The product of its (nonzero) digits is 24, while the sum is 9.
The square root of 2043 is about 45.1995575200.
The cubic root of 2043 is about 12.6888653517.
Adding to 2043 its reverse (3402), we get a palindrome (5445).
The spelling of 2043 in words is "two thousand, forty-three", and thus it is an iban number.