142142020545139 has 2 divisors, whose sum is σ = 142142020545140. Its totient is φ = 142142020545138.

The previous prime is 142142020545061. The next prime is 142142020545167. The reversal of 142142020545139 is 931545020241241.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142142020545139 - 2⁷ = 142142020545011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142142020545095 and 142142020545104.

It is not a weakly prime, because it can be changed into another prime (142142020545839) 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, 71071010272569 + 71071010272570.

It is an arithmetic number, because the mean of its divisors is an integer number (71071010272570).

Almost surely, 2^{142142020545139} is an apocalyptic number.

142142020545139 is a deficient number, since it is larger than the sum of its proper divisors (1).

142142020545139 is an equidigital number, since it uses as much as digits as its factorization.

142142020545139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 142142020545139 in words is "one hundred forty-two trillion, one hundred forty-two billion, twenty million, five hundred forty-five thousand, one hundred thirty-nine".