144343155545321 has 2 divisors, whose sum is σ = 144343155545322. Its totient is φ = 144343155545320.

The previous prime is 144343155545311. The next prime is 144343155545357. The reversal of 144343155545321 is 123545551343441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113363634439696 + 30979521105625 = 10647236^2 + 5565925^2 .

It is an emirp because it is prime and its reverse (123545551343441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144343155545321 - 2¹⁰ = 144343155544297 is a prime.

It is a super-3 number, since 3×144343155545321³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144343155545321.

It is not a weakly prime, because it can be changed into another prime (144343155545311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72171577772660 + 72171577772661.

It is an arithmetic number, because the mean of its divisors is an integer number (72171577772661).

Almost surely, 2^{144343155545321} is an apocalyptic number.

It is an amenable number.

144343155545321 is a deficient number, since it is larger than the sum of its proper divisors (1).

144343155545321 is an equidigital number, since it uses as much as digits as its factorization.

144343155545321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640000, while the sum is 50.

The spelling of 144343155545321 in words is "one hundred forty-four trillion, three hundred forty-three billion, one hundred fifty-five million, five hundred forty-five thousand, three hundred twenty-one".