1144664089 has 2 divisors, whose sum is σ = 1144664090. Its totient is φ = 1144664088.

The previous prime is 1144664051. The next prime is 1144664093. The reversal of 1144664089 is 9804664411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1120575625 + 24088464 = 33475^2 + 4908^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144664089 is a prime.

It is not a weakly prime, because it can be changed into another prime (1144664189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572332044 + 572332045.

It is an arithmetic number, because the mean of its divisors is an integer number (572332045).

Almost surely, 2^1144664089 is an apocalyptic number.

It is an amenable number.

1144664089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144664089 is an equidigital number, since it uses as much as digits as its factorization.

1144664089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 1144664089 is about 33832.8847277320. The cubic root of 1144664089 is about 1046.0666410337.

The spelling of 1144664089 in words is "one billion, one hundred forty-four million, six hundred sixty-four thousand, eighty-nine".