1443143249 has 2 divisors, whose sum is σ = 1443143250. Its totient is φ = 1443143248.

The previous prime is 1443143239. The next prime is 1443143321. The reversal of 1443143249 is 9423413441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1442860225 + 283024 = 37985^2 + 532^2 .

It is a cyclic number.

It is not a de Polignac number, because 1443143249 - 2⁸ = 1443142993 is a prime.

It is not a weakly prime, because it can be changed into another prime (1443143239) 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, 721571624 + 721571625.

It is an arithmetic number, because the mean of its divisors is an integer number (721571625).

Almost surely, 2^1443143249 is an apocalyptic number.

It is an amenable number.

1443143249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1443143249 is an equidigital number, since it uses as much as digits as its factorization.

1443143249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 35.

The square root of 1443143249 is about 37988.7252879061. The cubic root of 1443143249 is about 1130.0642793726.

The spelling of 1443143249 in words is "one billion, four hundred forty-three million, one hundred forty-three thousand, two hundred forty-nine".