2543111 has 2 divisors, whose sum is σ = 2543112. Its totient is φ = 2543110.

The previous prime is 2543059. The next prime is 2543113. The reversal of 2543111 is 1113452.

2543111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2543111 - 2¹⁰ = 2542087 is a prime.

Together with 2543113, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2543111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2543113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271555 + 1271556.

It is an arithmetic number, because the mean of its divisors is an integer number (1271556).

2^2543111 is an apocalyptic number.

2543111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2543111 is an equidigital number, since it uses as much as digits as its factorization.

2543111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120, while the sum is 17.

The square root of 2543111 is about 1594.7134538844. The cubic root of 2543111 is about 136.4965806637.

Adding to 2543111 its reverse (1113452), we get a palindrome (3656563).

The spelling of 2543111 in words is "two million, five hundred forty-three thousand, one hundred eleven".