144743620781 has 2 divisors, whose sum is σ = 144743620782. Its totient is φ = 144743620780.

The previous prime is 144743620753. The next prime is 144743620793. The reversal of 144743620781 is 187026347441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108590020900 + 36153599881 = 329530^2 + 190141^2 .

It is a cyclic number.

It is not a de Polignac number, because 144743620781 - 2²² = 144739426477 is a prime.

It is a super-2 number, since 2×144743620781² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144743620751) 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, 72371810390 + 72371810391.

It is an arithmetic number, because the mean of its divisors is an integer number (72371810391).

Almost surely, 2^144743620781 is an apocalyptic number.

It is an amenable number.

144743620781 is a deficient number, since it is larger than the sum of its proper divisors (1).

144743620781 is an equidigital number, since it uses as much as digits as its factorization.

144743620781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 903168, while the sum is 47.

The spelling of 144743620781 in words is "one hundred forty-four billion, seven hundred forty-three million, six hundred twenty thousand, seven hundred eighty-one".