1449665559 has 16 divisors (see below), whose sum is σ = 2148246240. Its totient is φ = 966176640.

The previous prime is 1449665537. The next prime is 1449665561. The reversal of 1449665559 is 9555669441.

It is not a de Polignac number, because 1449665559 - 2⁵ = 1449665527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1449665759) 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 in 15 ways as a sum of consecutive naturals, for example, 164649 + ... + 173229.

It is an arithmetic number, because the mean of its divisors is an integer number (134265390).

Almost surely, 2^1449665559 is an apocalyptic number.

1449665559 is a deficient number, since it is larger than the sum of its proper divisors (698580681).

1449665559 is an equidigital number, since it uses as much as digits as its factorization.

1449665559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14847 (or 14841 counting only the distinct ones).

The product of its digits is 5832000, while the sum is 54.

The square root of 1449665559 is about 38074.4738505997. The cubic root of 1449665559 is about 1131.7641691692.

The spelling of 1449665559 in words is "one billion, four hundred forty-nine million, six hundred sixty-five thousand, five hundred fifty-nine".