142522630415521 has 2 divisors, whose sum is σ = 142522630415522. Its totient is φ = 142522630415520.

The previous prime is 142522630415507. The next prime is 142522630415617. The reversal of 142522630415521 is 125514036225241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98771496408225 + 43751134007296 = 9938385^2 + 6614464^2 .

It is an emirp because it is prime and its reverse (125514036225241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142522630415521 - 2²⁵ = 142522596861089 is a prime.

It is not a weakly prime, because it can be changed into another prime (142522630416521) 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, 71261315207760 + 71261315207761.

It is an arithmetic number, because the mean of its divisors is an integer number (71261315207761).

Almost surely, 2^{142522630415521} is an apocalyptic number.

It is an amenable number.

142522630415521 is a deficient number, since it is larger than the sum of its proper divisors (1).

142522630415521 is an equidigital number, since it uses as much as digits as its factorization.

142522630415521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576000, while the sum is 43.

The spelling of 142522630415521 in words is "one hundred forty-two trillion, five hundred twenty-two billion, six hundred thirty million, four hundred fifteen thousand, five hundred twenty-one".