142221605759 has 2 divisors, whose sum is σ = 142221605760. Its totient is φ = 142221605758.

The previous prime is 142221605653. The next prime is 142221605797. The reversal of 142221605759 is 957506122241.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142221605759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142221605359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71110802879 + 71110802880.

It is an arithmetic number, because the mean of its divisors is an integer number (71110802880).

Almost surely, 2^142221605759 is an apocalyptic number.

142221605759 is a deficient number, since it is larger than the sum of its proper divisors (1).

142221605759 is an equidigital number, since it uses as much as digits as its factorization.

142221605759 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 142221605759 in words is "one hundred forty-two billion, two hundred twenty-one million, six hundred five thousand, seven hundred fifty-nine".