142142020545061 has 2 divisors, whose sum is σ = 142142020545062. Its totient is φ = 142142020545060.

The previous prime is 142142020545037. The next prime is 142142020545139. The reversal of 142142020545061 is 160545020241241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116075951561025 + 26066068984036 = 10773855^2 + 5105494^2 .

It is a cyclic number.

It is not a de Polignac number, because 142142020545061 - 2¹³ = 142142020536869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142142020545061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142142020545011) 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, 71071010272530 + 71071010272531.

It is an arithmetic number, because the mean of its divisors is an integer number (71071010272531).

Almost surely, 2^{142142020545061} is an apocalyptic number.

It is an amenable number.

142142020545061 is a deficient number, since it is larger than the sum of its proper divisors (1).

142142020545061 is an equidigital number, since it uses as much as digits as its factorization.

142142020545061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 76800, while the sum is 37.

The spelling of 142142020545061 in words is "one hundred forty-two trillion, one hundred forty-two billion, twenty million, five hundred forty-five thousand, sixty-one".