2543323 has 2 divisors, whose sum is σ = 2543324. Its totient is φ = 2543322.

The previous prime is 2543309. The next prime is 2543327. The reversal of 2543323 is 3233452.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2543323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2543294 and 2543303.

It is not a weakly prime, because it can be changed into another prime (2543327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271661 + 1271662.

It is an arithmetic number, because the mean of its divisors is an integer number (1271662).

2^2543323 is an apocalyptic number.

2543323 is a deficient number, since it is larger than the sum of its proper divisors (1).

2543323 is an equidigital number, since it uses as much as digits as its factorization.

2543323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 22.

The square root of 2543323 is about 1594.7799221209. The cubic root of 2543323 is about 136.5003734554.

Adding to 2543323 its reverse (3233452), we get a palindrome (5776775).

The spelling of 2543323 in words is "two million, five hundred forty-three thousand, three hundred twenty-three".