144544613444261 has 2 divisors, whose sum is σ = 144544613444262. Its totient is φ = 144544613444260.

The previous prime is 144544613444239. The next prime is 144544613444303. The reversal of 144544613444261 is 162444316445441.

144544613444261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137555225819236 + 6989387625025 = 11728394^2 + 2643745^2 .

It is a cyclic number.

It is not a de Polignac number, because 144544613444261 - 2⁶ = 144544613444197 is a prime.

It is a super-2 number, since 2×144544613444261² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144544613444201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72272306722130 + 72272306722131.

It is an arithmetic number, because the mean of its divisors is an integer number (72272306722131).

Almost surely, 2^{144544613444261} is an apocalyptic number.

It is an amenable number.

144544613444261 is a deficient number, since it is larger than the sum of its proper divisors (1).

144544613444261 is an equidigital number, since it uses as much as digits as its factorization.

144544613444261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17694720, while the sum is 53.

The spelling of 144544613444261 in words is "one hundred forty-four trillion, five hundred forty-four billion, six hundred thirteen million, four hundred forty-four thousand, two hundred sixty-one".