144285707681 has 2 divisors, whose sum is σ = 144285707682. Its totient is φ = 144285707680.

The previous prime is 144285707633. The next prime is 144285707689. The reversal of 144285707681 is 186707582441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142569677056 + 1716030625 = 377584^2 + 41425^2 .

It is an emirp because it is prime and its reverse (186707582441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144285707681 - 2⁶ = 144285707617 is a prime.

It is a super-2 number, since 2×144285707681² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (144285707689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72142853840 + 72142853841.

It is an arithmetic number, because the mean of its divisors is an integer number (72142853841).

Almost surely, 2^144285707681 is an apocalyptic number.

It is an amenable number.

144285707681 is a deficient number, since it is larger than the sum of its proper divisors (1).

144285707681 is an equidigital number, since it uses as much as digits as its factorization.

144285707681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3010560, while the sum is 53.

The spelling of 144285707681 in words is "one hundred forty-four billion, two hundred eighty-five million, seven hundred seven thousand, six hundred eighty-one".