2499143 has 2 divisors, whose sum is σ = 2499144. Its totient is φ = 2499142.

The previous prime is 2499139. The next prime is 2499149. The reversal of 2499143 is 3419942.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2499143 - 2² = 2499139 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2499149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1249571 + 1249572.

It is an arithmetic number, because the mean of its divisors is an integer number (1249572).

2^2499143 is an apocalyptic number.

2499143 is a deficient number, since it is larger than the sum of its proper divisors (1).

2499143 is an equidigital number, since it uses as much as digits as its factorization.

2499143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 32.

The square root of 2499143 is about 1580.8677996594. The cubic root of 2499143 is about 135.7053706847.

The spelling of 2499143 in words is "two million, four hundred ninety-nine thousand, one hundred forty-three".