2543289 has 16 divisors (see below), whose sum is σ = 3904512. Its totient is φ = 1442448.

The previous prime is 2543287. The next prime is 2543309. The reversal of 2543289 is 9823452.

It is a happy number.

It is not a de Polignac number, because 2543289 - 2¹ = 2543287 is a prime.

It is a d-powerful number, because it can be written as 2³ + 5⁹ + 4⁸ + 3⁵ + 2¹⁹ + 8 + 9² .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2543287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3052 + ... + 3794.

It is an arithmetic number, because the mean of its divisors is an integer number (244032).

2^2543289 is an apocalyptic number.

It is an amenable number.

2543289 is a deficient number, since it is larger than the sum of its proper divisors (1361223).

2543289 is a wasteful number, since it uses less digits than its factorization.

2543289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916.

The product of its digits is 17280, while the sum is 33.

The square root of 2543289 is about 1594.7692623072. The cubic root of 2543289 is about 136.4997651917.

The spelling of 2543289 in words is "two million, five hundred forty-three thousand, two hundred eighty-nine".