142085 has 8 divisors (see below), whose sum is σ = 172536. Its totient is φ = 112320.

The previous prime is 142067. The next prime is 142097. The reversal of 142085 is 580241.

It can be written as a sum of positive squares in 4 ways, for example, as 2209 + 139876 = 47^2 + 374^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142085 - 2⁸ = 141829 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142085.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 695 + ... + 875.

It is an arithmetic number, because the mean of its divisors is an integer number (21567).

2¹⁴²⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

142085 is a deficient number, since it is larger than the sum of its proper divisors (30451).

142085 is a wasteful number, since it uses less digits than its factorization.

142085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 142085 is about 376.9416400452. The cubic root of 142085 is about 52.1814420998.

The spelling of 142085 in words is "one hundred forty-two thousand, eighty-five".