142585 has 4 divisors (see below), whose sum is σ = 171108. Its totient is φ = 114064.

The previous prime is 142573. The next prime is 142589. The reversal of 142585 is 585241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 585241 = 73 ⋅8017.

It can be written as a sum of positive squares in 2 ways, for example, as 90601 + 51984 = 301^2 + 228^2 .

It is a cyclic number.

It is not a de Polignac number, because 142585 - 2⁵ = 142553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142589) 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, 14254 + ... + 14263.

It is an arithmetic number, because the mean of its divisors is an integer number (42777).

2¹⁴²⁵⁸⁵ is an apocalyptic number.

It is an amenable number.

142585 is a deficient number, since it is larger than the sum of its proper divisors (28523).

142585 is an equidigital number, since it uses as much as digits as its factorization.

142585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28522.

The product of its digits is 1600, while the sum is 25.

The square root of 142585 is about 377.6042902299. The cubic root of 142585 is about 52.2425796259.

It can be divided in two parts, 142 and 585, that added together give a palindrome (727).

The spelling of 142585 in words is "one hundred forty-two thousand, five hundred eighty-five".