143718839317 has 2 divisors, whose sum is σ = 143718839318. Its totient is φ = 143718839316.

The previous prime is 143718839293. The next prime is 143718839353. The reversal of 143718839317 is 713938817341.

143718839317 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., 77590659601 + 66128179716 = 278551^2 + 257154^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143718839317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143718839617) 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, 71859419658 + 71859419659.

It is an arithmetic number, because the mean of its divisors is an integer number (71859419659).

Almost surely, 2^143718839317 is an apocalyptic number.

It is an amenable number.

143718839317 is a deficient number, since it is larger than the sum of its proper divisors (1).

143718839317 is an equidigital number, since it uses as much as digits as its factorization.

143718839317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 55.

The spelling of 143718839317 in words is "one hundred forty-three billion, seven hundred eighteen million, eight hundred thirty-nine thousand, three hundred seventeen".