144635135569 has 2 divisors, whose sum is σ = 144635135570. Its totient is φ = 144635135568.

The previous prime is 144635135563. The next prime is 144635135581. The reversal of 144635135569 is 965531536441.

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., 91378034944 + 53257100625 = 302288^2 + 230775^2 .

It is an emirp because it is prime and its reverse (965531536441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144635135569 - 2¹¹ = 144635133521 is a prime.

It is a super-2 number, since 2×144635135569² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (144635135563) 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, 72317567784 + 72317567785.

It is an arithmetic number, because the mean of its divisors is an integer number (72317567785).

Almost surely, 2^144635135569 is an apocalyptic number.

It is an amenable number.

144635135569 is a deficient number, since it is larger than the sum of its proper divisors (1).

144635135569 is an equidigital number, since it uses as much as digits as its factorization.

144635135569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832000, while the sum is 52.

The spelling of 144635135569 in words is "one hundred forty-four billion, six hundred thirty-five million, one hundred thirty-five thousand, five hundred sixty-nine".