143661747673 has 2 divisors, whose sum is σ = 143661747674. Its totient is φ = 143661747672.

The previous prime is 143661747659. The next prime is 143661747683. The reversal of 143661747673 is 376747166341.

143661747673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90232349769 + 53429397904 = 300387^2 + 231148^2 .

It is a cyclic number.

It is not a de Polignac number, because 143661747673 - 2³³ = 135071813081 is a prime.

It is not a weakly prime, because it can be changed into another prime (143661747623) 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, 71830873836 + 71830873837.

It is an arithmetic number, because the mean of its divisors is an integer number (71830873837).

Almost surely, 2^143661747673 is an apocalyptic number.

It is an amenable number.

143661747673 is a deficient number, since it is larger than the sum of its proper divisors (1).

143661747673 is an equidigital number, since it uses as much as digits as its factorization.

143661747673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10668672, while the sum is 55.

The spelling of 143661747673 in words is "one hundred forty-three billion, six hundred sixty-one million, seven hundred forty-seven thousand, six hundred seventy-three".