142085444785 has 4 divisors (see below), whose sum is σ = 170502533748. Its totient is φ = 113668355824.

The previous prime is 142085444779. The next prime is 142085444789. The reversal of 142085444785 is 587444580241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 94721757361 + 47363687424 = 307769^2 + 217632^2 .

It is a cyclic number.

It is not a de Polignac number, because 142085444785 - 2¹³ = 142085436593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142085444789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14208544474 + ... + 14208544483.

It is an arithmetic number, because the mean of its divisors is an integer number (42625633437).

Almost surely, 2^142085444785 is an apocalyptic number.

It is an amenable number.

142085444785 is a deficient number, since it is larger than the sum of its proper divisors (28417088963).

142085444785 is an equidigital number, since it uses as much as digits as its factorization.

142085444785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28417088962.

The product of its (nonzero) digits is 5734400, while the sum is 52.

The spelling of 142085444785 in words is "one hundred forty-two billion, eighty-five million, four hundred forty-four thousand, seven hundred eighty-five".