1449648289 has 2 divisors, whose sum is σ = 1449648290. Its totient is φ = 1449648288.

The previous prime is 1449648131. The next prime is 1449648311. The reversal of 1449648289 is 9828469441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1037355264 + 412293025 = 32208^2 + 20305^2 .

It is a cyclic number.

It is not a de Polignac number, because 1449648289 - 2¹¹ = 1449646241 is a prime.

It is not a weakly prime, because it can be changed into another prime (1449640289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 724824144 + 724824145.

It is an arithmetic number, because the mean of its divisors is an integer number (724824145).

Almost surely, 2^1449648289 is an apocalyptic number.

It is an amenable number.

1449648289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1449648289 is an equidigital number, since it uses as much as digits as its factorization.

1449648289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3981312, while the sum is 55.

The square root of 1449648289 is about 38074.2470575585. The cubic root of 1449648289 is about 1131.7596748810.

The spelling of 1449648289 in words is "one billion, four hundred forty-nine million, six hundred forty-eight thousand, two hundred eighty-nine".