1144450309 has 2 divisors, whose sum is σ = 1144450310. Its totient is φ = 1144450308.

The previous prime is 1144450297. The next prime is 1144450331. The reversal of 1144450309 is 9030544411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1038257284 + 106193025 = 32222^2 + 10305^2 .

It is a cyclic number.

It is not a de Polignac number, because 1144450309 - 2⁹ = 1144449797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1144450339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572225154 + 572225155.

It is an arithmetic number, because the mean of its divisors is an integer number (572225155).

Almost surely, 2^1144450309 is an apocalyptic number.

It is an amenable number.

1144450309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144450309 is an equidigital number, since it uses as much as digits as its factorization.

1144450309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1144450309 is about 33829.7252279707. The cubic root of 1144450309 is about 1046.0015150718.

The spelling of 1144450309 in words is "one billion, one hundred forty-four million, four hundred fifty thousand, three hundred nine".