538231 has 4 divisors (see below), whose sum is σ = 550792. Its totient is φ = 525672.

The previous prime is 538201. The next prime is 538247. The reversal of 538231 is 132835.

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

It is a cyclic number.

It is not a de Polignac number, because 538231 - 2⁵ = 538199 is a prime.

It is a super-2 number, since 2×538231² = 579385218722, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538201) 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 3 ways as a sum of consecutive naturals, for example, 6216 + ... + 6301.

It is an arithmetic number, because the mean of its divisors is an integer number (137698).

2⁵³⁸²³¹ is an apocalyptic number.

538231 is a deficient number, since it is larger than the sum of its proper divisors (12561).

538231 is a wasteful number, since it uses less digits than its factorization.

538231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12560.

The product of its digits is 720, while the sum is 22.

The square root of 538231 is about 733.6422834052. The cubic root of 538231 is about 81.3435089093.

It can be divided in two parts, 53823 and 1, that added together give a square (53824 = 232²).

The spelling of 538231 in words is "five hundred thirty-eight thousand, two hundred thirty-one".