244143019 has 2 divisors, whose sum is σ = 244143020. Its totient is φ = 244143018.

The previous prime is 244142993. The next prime is 244143049. The reversal of 244143019 is 910341442.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 244143019 - 2⁷ = 244142891 is a prime.

It is a super-2 number, since 2×244143019² = 119211627452868722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (244143049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122071509 + 122071510.

It is an arithmetic number, because the mean of its divisors is an integer number (122071510).

Almost surely, 2^244143019 is an apocalyptic number.

244143019 is a deficient number, since it is larger than the sum of its proper divisors (1).

244143019 is an equidigital number, since it uses as much as digits as its factorization.

244143019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 244143019 is about 15625.0766078122. The cubic root of 244143019 is about 625.0020428733.

The spelling of 244143019 in words is "two hundred forty-four million, one hundred forty-three thousand, nineteen".