142071920189 has 2 divisors, whose sum is σ = 142071920190. Its totient is φ = 142071920188.

The previous prime is 142071920171. The next prime is 142071920261. The reversal of 142071920189 is 981029170241.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76659765625 + 65412154564 = 276875^2 + 255758^2 .

It is a cyclic number.

It is not a de Polignac number, because 142071920189 - 2⁸ = 142071919933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142071920119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71035960094 + 71035960095.

It is an arithmetic number, because the mean of its divisors is an integer number (71035960095).

Almost surely, 2^142071920189 is an apocalyptic number.

It is an amenable number.

142071920189 is a deficient number, since it is larger than the sum of its proper divisors (1).

142071920189 is an equidigital number, since it uses as much as digits as its factorization.

142071920189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 44.

The spelling of 142071920189 in words is "one hundred forty-two billion, seventy-one million, nine hundred twenty thousand, one hundred eighty-nine".