142445530789 has 2 divisors, whose sum is σ = 142445530790. Its totient is φ = 142445530788.

The previous prime is 142445530693. The next prime is 142445530811. The reversal of 142445530789 is 987035544241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126358920900 + 16086609889 = 355470^2 + 126833^2 .

It is an emirp because it is prime and its reverse (987035544241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142445530789 - 2⁹ = 142445530277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142445536789) 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, 71222765394 + 71222765395.

It is an arithmetic number, because the mean of its divisors is an integer number (71222765395).

Almost surely, 2^142445530789 is an apocalyptic number.

It is an amenable number.

142445530789 is a deficient number, since it is larger than the sum of its proper divisors (1).

142445530789 is an equidigital number, since it uses as much as digits as its factorization.

142445530789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4838400, while the sum is 52.

The spelling of 142445530789 in words is "one hundred forty-two billion, four hundred forty-five million, five hundred thirty thousand, seven hundred eighty-nine".