142354555642171 has 2 divisors, whose sum is σ = 142354555642172. Its totient is φ = 142354555642170.

The previous prime is 142354555642151. The next prime is 142354555642267. The reversal of 142354555642171 is 171246555453241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142354555642171 - 2¹¹ = 142354555640123 is a prime.

It is not a weakly prime, because it can be changed into another prime (142354555642141) 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, 71177277821085 + 71177277821086.

It is an arithmetic number, because the mean of its divisors is an integer number (71177277821086).

Almost surely, 2^{142354555642171} is an apocalyptic number.

142354555642171 is a deficient number, since it is larger than the sum of its proper divisors (1).

142354555642171 is an equidigital number, since it uses as much as digits as its factorization.

142354555642171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160000, while the sum is 55.

The spelling of 142354555642171 in words is "one hundred forty-two trillion, three hundred fifty-four billion, five hundred fifty-five million, six hundred forty-two thousand, one hundred seventy-one".