142978280171 has 2 divisors, whose sum is σ = 142978280172. Its totient is φ = 142978280170.

The previous prime is 142978280129. The next prime is 142978280209. The reversal of 142978280171 is 171082879241.

142978280171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142978280171 - 2³⁴ = 125798410987 is a prime.

It is not a weakly prime, because it can be changed into another prime (142978280101) 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, 71489140085 + 71489140086.

It is an arithmetic number, because the mean of its divisors is an integer number (71489140086).

Almost surely, 2^142978280171 is an apocalyptic number.

142978280171 is a deficient number, since it is larger than the sum of its proper divisors (1).

142978280171 is an equidigital number, since it uses as much as digits as its factorization.

142978280171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 451584, while the sum is 50.

The spelling of 142978280171 in words is "one hundred forty-two billion, nine hundred seventy-eight million, two hundred eighty thousand, one hundred seventy-one".