530813 has 4 divisors (see below), whose sum is σ = 547968. Its totient is φ = 513660.

The previous prime is 530807. The next prime is 530833. The reversal of 530813 is 318035.

530813 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 318035 = 5 ⋅63607.

It is a cyclic number.

It is not a de Polignac number, because 530813 - 2⁴ = 530797 is a prime.

It is a super-3 number, since 3×530813³ = 448689499734233391, which contains 333 as substring.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530833) 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, 8531 + ... + 8592.

It is an arithmetic number, because the mean of its divisors is an integer number (136992).

2⁵³⁰⁸¹³ is an apocalyptic number.

It is an amenable number.

530813 is a deficient number, since it is larger than the sum of its proper divisors (17155).

530813 is a wasteful number, since it uses less digits than its factorization.

530813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17154.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 530813 is about 728.5691456547. The cubic root of 530813 is about 80.9680817187.

Adding to 530813 its reverse (318035), we get a palindrome (848848).

The spelling of 530813 in words is "five hundred thirty thousand, eight hundred thirteen".