144322261409 has 2 divisors, whose sum is σ = 144322261410. Its totient is φ = 144322261408.

The previous prime is 144322261399. The next prime is 144322261417. The reversal of 144322261409 is 904162223441.

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., 115768021009 + 28554240400 = 340247^2 + 168980^2 .

It is a cyclic number.

It is not a de Polignac number, because 144322261409 - 2¹⁶ = 144322195873 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (144322263409) 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, 72161130704 + 72161130705.

It is an arithmetic number, because the mean of its divisors is an integer number (72161130705).

Almost surely, 2^144322261409 is an apocalyptic number.

It is an amenable number.

144322261409 is a deficient number, since it is larger than the sum of its proper divisors (1).

144322261409 is an equidigital number, since it uses as much as digits as its factorization.

144322261409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 144322261409 in words is "one hundred forty-four billion, three hundred twenty-two million, two hundred sixty-one thousand, four hundred nine".