2543013 has 24 divisors (see below), whose sum is σ = 4245696. Its totient is φ = 1449600.

The previous prime is 2542999. The next prime is 2543027. The reversal of 2543013 is 3103452.

It is an interprime number because it is at equal distance from previous prime (2542999) and next prime (2543027).

It is not a de Polignac number, because 2543013 - 2¹² = 2538917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 928 + ... + 2438.

It is an arithmetic number, because the mean of its divisors is an integer number (176904).

2^2543013 is an apocalyptic number.

It is an amenable number.

2543013 is a deficient number, since it is larger than the sum of its proper divisors (1702683).

2543013 is a wasteful number, since it uses less digits than its factorization.

2543013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545 (or 1542 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 2543013 is about 1594.6827270652. The cubic root of 2543013 is about 136.4948273208.

Adding to 2543013 its reverse (3103452), we get a palindrome (5646465).

The spelling of 2543013 in words is "two million, five hundred forty-three thousand, thirteen".