142117908529 has 2 divisors, whose sum is σ = 142117908530. Its totient is φ = 142117908528.

The previous prime is 142117908419. The next prime is 142117908539. The reversal of 142117908529 is 925809711241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142111658529 + 6250000 = 376977^2 + 2500^2 .

It is a cyclic number.

It is not a de Polignac number, because 142117908529 - 2¹⁵ = 142117875761 is a prime.

It is not a weakly prime, because it can be changed into another prime (142117908539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71058954264 + 71058954265.

It is an arithmetic number, because the mean of its divisors is an integer number (71058954265).

Almost surely, 2^142117908529 is an apocalyptic number.

It is an amenable number.

142117908529 is a deficient number, since it is larger than the sum of its proper divisors (1).

142117908529 is an equidigital number, since it uses as much as digits as its factorization.

142117908529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 49.

The spelling of 142117908529 in words is "one hundred forty-two billion, one hundred seventeen million, nine hundred eight thousand, five hundred twenty-nine".