2543047 has 16 divisors (see below), whose sum is σ = 2987712. Its totient is φ = 2142720.

The previous prime is 2543033. The next prime is 2543059. The reversal of 2543047 is 7403452.

It is a cyclic number.

It is not a de Polignac number, because 2543047 - 2⁷ = 2542919 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 5⁹ + 4³ + 3³ + 0 + 4⁸ + 7 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543027) 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, 8022 + ... + 8332.

It is an arithmetic number, because the mean of its divisors is an integer number (186732).

2^2543047 is an apocalyptic number.

2543047 is a deficient number, since it is larger than the sum of its proper divisors (444665).

2543047 is a wasteful number, since it uses less digits than its factorization.

2543047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 2543047 is about 1594.6933874573. The cubic root of 2543047 is about 136.4954356285.

Adding to 2543047 its reverse (7403452), we get a palindrome (9946499).

The spelling of 2543047 in words is "two million, five hundred forty-three thousand, forty-seven".