142141998934721 has 2 divisors, whose sum is σ = 142141998934722. Its totient is φ = 142141998934720.

The previous prime is 142141998934693. The next prime is 142141998934769. The reversal of 142141998934721 is 127439899141241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82896727495696 + 59245271439025 = 9104764^2 + 7697095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142141998934721 is a prime.

It is a super-2 number, since 2×142141998934721² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (142141998937721) 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, 71070999467360 + 71070999467361.

It is an arithmetic number, because the mean of its divisors is an integer number (71070999467361).

Almost surely, 2^{142141998934721} is an apocalyptic number.

It is an amenable number.

142141998934721 is a deficient number, since it is larger than the sum of its proper divisors (1).

142141998934721 is an equidigital number, since it uses as much as digits as its factorization.

142141998934721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31352832, while the sum is 65.

The spelling of 142141998934721 in words is "one hundred forty-two trillion, one hundred forty-one billion, nine hundred ninety-eight million, nine hundred thirty-four thousand, seven hundred twenty-one".