2549143 has 2 divisors, whose sum is σ = 2549144. Its totient is φ = 2549142.

The previous prime is 2549123. The next prime is 2549171. The reversal of 2549143 is 3419452.

It is an a-pointer prime, because the next prime (2549171) can be obtained adding 2549143 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2549143 - 2⁵ = 2549111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2549123) 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 as a sum of consecutive naturals, namely, 1274571 + 1274572.

It is an arithmetic number, because the mean of its divisors is an integer number (1274572).

2^2549143 is an apocalyptic number.

2549143 is a deficient number, since it is larger than the sum of its proper divisors (1).

2549143 is an equidigital number, since it uses as much as digits as its factorization.

2549143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 2549143 is about 1596.6035826090. The cubic root of 2549143 is about 136.6044141094.

The spelling of 2549143 in words is "two million, five hundred forty-nine thousand, one hundred forty-three".