538131 has 16 divisors (see below), whose sum is σ = 817920. Its totient is φ = 311520.

The previous prime is 538127. The next prime is 538147. The reversal of 538131 is 131835.

It is a happy number.

It is not a de Polignac number, because 538131 - 2² = 538127 is a prime.

It is a super-2 number, since 2×538131² = 579169946322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 538098 and 538107.

It is not an unprimeable number, because it can be changed into a prime (538121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405 + ... + 1113.

It is an arithmetic number, because the mean of its divisors is an integer number (51120).

2⁵³⁸¹³¹ is an apocalyptic number.

538131 is a deficient number, since it is larger than the sum of its proper divisors (279789).

538131 is a wasteful number, since it uses less digits than its factorization.

538131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746.

The product of its digits is 360, while the sum is 21.

The square root of 538131 is about 733.5741271337. The cubic root of 538131 is about 81.3384708899.

Adding to 538131 its reverse (131835), we get a palindrome (669966).

The spelling of 538131 in words is "five hundred thirty-eight thousand, one hundred thirty-one".