1445534549 has 2 divisors, whose sum is σ = 1445534550. Its totient is φ = 1445534548.

The previous prime is 1445534513. The next prime is 1445534579. The reversal of 1445534549 is 9454355441.

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., 1414286449 + 31248100 = 37607^2 + 5590^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445534549 - 2¹² = 1445530453 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1445534579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722767274 + 722767275.

It is an arithmetic number, because the mean of its divisors is an integer number (722767275).

Almost surely, 2^1445534549 is an apocalyptic number.

It is an amenable number.

1445534549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445534549 is an equidigital number, since it uses as much as digits as its factorization.

1445534549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864000, while the sum is 44.

The square root of 1445534549 is about 38020.1860726641. The cubic root of 1445534549 is about 1130.6881101428.

The spelling of 1445534549 in words is "one billion, four hundred forty-five million, five hundred thirty-four thousand, five hundred forty-nine".