1144644019 has 2 divisors, whose sum is σ = 1144644020. Its totient is φ = 1144644018.

The previous prime is 1144643971. The next prime is 1144644023. The reversal of 1144644019 is 9104464411.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144644019 is a prime.

It is a super-2 number, since 2×1144644019² = 2620419860464944722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1144644029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572322009 + 572322010.

It is an arithmetic number, because the mean of its divisors is an integer number (572322010).

Almost surely, 2^1144644019 is an apocalyptic number.

1144644019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144644019 is an equidigital number, since it uses as much as digits as its factorization.

1144644019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 1144644019 is about 33832.5881215138. The cubic root of 1144644019 is about 1046.0605272517.

The spelling of 1144644019 in words is "one billion, one hundred forty-four million, six hundred forty-four thousand, nineteen".