2543116 has 12 divisors (see below), whose sum is σ = 4594240. Its totient is φ = 1230480.

The previous prime is 2543113. The next prime is 2543117. The reversal of 2543116 is 6113452.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2543111) 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, 10131 + ... + 10378.

2^2543116 is an apocalyptic number.

It is an amenable number.

2543116 is a deficient number, since it is larger than the sum of its proper divisors (2051124).

2543116 is a wasteful number, since it uses less digits than its factorization.

2543116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20544 (or 20542 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 2543116 is about 1594.7150215634. The cubic root of 2543116 is about 136.4966701187.

Adding to 2543116 its reverse (6113452), we get a palindrome (8656568).

The spelling of 2543116 in words is "two million, five hundred forty-three thousand, one hundred sixteen".