530931 has 4 divisors (see below), whose sum is σ = 707912. Its totient is φ = 353952.

The previous prime is 530911. The next prime is 530947. The reversal of 530931 is 139035.

530931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 530931 - 2¹¹ = 528883 is a prime.

It is a super-2 number, since 2×530931² = 563775453522, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 530898 and 530907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530911) 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, 88486 + ... + 88491.

It is an arithmetic number, because the mean of its divisors is an integer number (176978).

530931 is a Friedman number, since it can be written as 9^(3+3)-510, using all its digits and the basic arithmetic operations.

2⁵³⁰⁹³¹ is an apocalyptic number.

530931 is a deficient number, since it is larger than the sum of its proper divisors (176981).

530931 is a wasteful number, since it uses less digits than its factorization.

530931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176980.

The product of its (nonzero) digits is 405, while the sum is 21.

The square root of 530931 is about 728.6501218006. The cubic root of 530931 is about 80.9740810228.

Adding to 530931 its reverse (139035), we get a palindrome (669966).

The spelling of 530931 in words is "five hundred thirty thousand, nine hundred thirty-one".