142071701789 has 2 divisors, whose sum is σ = 142071701790. Its totient is φ = 142071701788.

The previous prime is 142071701773. The next prime is 142071701801. The reversal of 142071701789 is 987107170241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74024805625 + 68046896164 = 272075^2 + 260858^2 .

It is a cyclic number.

It is not a de Polignac number, because 142071701789 - 2⁴ = 142071701773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142071701719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71035850894 + 71035850895.

It is an arithmetic number, because the mean of its divisors is an integer number (71035850895).

Almost surely, 2^142071701789 is an apocalyptic number.

It is an amenable number.

142071701789 is a deficient number, since it is larger than the sum of its proper divisors (1).

142071701789 is an equidigital number, since it uses as much as digits as its factorization.

142071701789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 197568, while the sum is 47.

The spelling of 142071701789 in words is "one hundred forty-two billion, seventy-one million, seven hundred one thousand, seven hundred eighty-nine".