1449619789 has 2 divisors, whose sum is σ = 1449619790. Its totient is φ = 1449619788.

The previous prime is 1449619757. The next prime is 1449619811. The reversal of 1449619789 is 9879169441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 754875625 + 694744164 = 27475^2 + 26358^2 .

It is an emirp because it is prime and its reverse (9879169441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1449619789 - 2⁵ = 1449619757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1449619289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 724809894 + 724809895.

It is an arithmetic number, because the mean of its divisors is an integer number (724809895).

Almost surely, 2^1449619789 is an apocalyptic number.

It is an amenable number.

1449619789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1449619789 is an equidigital number, since it uses as much as digits as its factorization.

1449619789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3919104, while the sum is 58.

The square root of 1449619789 is about 38073.8727869913. The cubic root of 1449619789 is about 1131.7522580562.

The spelling of 1449619789 in words is "one billion, four hundred forty-nine million, six hundred nineteen thousand, seven hundred eighty-nine".