238539 has 16 divisors (see below), whose sum is σ = 374528. Its totient is φ = 132192.

The previous prime is 238531. The next prime is 238547. The reversal of 238539 is 935832.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (238531) and next prime (238547).

It is not a de Polignac number, because 238539 - 2³ = 238531 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 624 + ... + 930.

It is an arithmetic number, because the mean of its divisors is an integer number (23408).

2²³⁸⁵³⁹ is an apocalyptic number.

238539 is a deficient number, since it is larger than the sum of its proper divisors (135989).

238539 is a wasteful number, since it uses less digits than its factorization.

238539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354.

The product of its digits is 6480, while the sum is 30.

The square root of 238539 is about 488.4045454334. The cubic root of 238539 is about 62.0182915160.

It can be divided in two parts, 238 and 539, that added together give a palindrome (777).

The spelling of 238539 in words is "two hundred thirty-eight thousand, five hundred thirty-nine".