144202697549 has 2 divisors, whose sum is σ = 144202697550. Its totient is φ = 144202697548.

The previous prime is 144202697543. The next prime is 144202697579. The reversal of 144202697549 is 945796202441.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118168875049 + 26033822500 = 343757^2 + 161350^2 .

It is a cyclic number.

It is not a de Polignac number, because 144202697549 - 2⁴ = 144202697533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144202697549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144202697543) 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, 72101348774 + 72101348775.

It is an arithmetic number, because the mean of its divisors is an integer number (72101348775).

Almost surely, 2^144202697549 is an apocalyptic number.

It is an amenable number.

144202697549 is a deficient number, since it is larger than the sum of its proper divisors (1).

144202697549 is an equidigital number, since it uses as much as digits as its factorization.

144202697549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 144202697549 in words is "one hundred forty-four billion, two hundred two million, six hundred ninety-seven thousand, five hundred forty-nine".