585139 has 4 divisors (see below), whose sum is σ = 589024. Its totient is φ = 581256.

The previous prime is 585131. The next prime is 585149. The reversal of 585139 is 931585.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 931585 = 5 ⋅186317.

It is a cyclic number.

It is not a de Polignac number, because 585139 - 2³ = 585131 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 585139.

It is not an unprimeable number, because it can be changed into a prime (585131) 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, 1707 + ... + 2020.

It is an arithmetic number, because the mean of its divisors is an integer number (147256).

2⁵⁸⁵¹³⁹ is an apocalyptic number.

585139 is a deficient number, since it is larger than the sum of its proper divisors (3885).

585139 is a wasteful number, since it uses less digits than its factorization.

585139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3884.

The product of its digits is 5400, while the sum is 31.

The square root of 585139 is about 764.9437887845. The cubic root of 585139 is about 83.6410895895.

The spelling of 585139 in words is "five hundred eighty-five thousand, one hundred thirty-nine".