530731 has 2 divisors, whose sum is σ = 530732. Its totient is φ = 530730.

The previous prime is 530713. The next prime is 530741. The reversal of 530731 is 137035.

Together with previous prime (530713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 530731 - 2⁷ = 530603 is a prime.

It is a super-2 number, since 2×530731² = 563350788722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 530699 and 530708.

It is not a weakly prime, because it can be changed into another prime (530701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265365 + 265366.

It is an arithmetic number, because the mean of its divisors is an integer number (265366).

2⁵³⁰⁷³¹ is an apocalyptic number.

530731 is a deficient number, since it is larger than the sum of its proper divisors (1).

530731 is an equidigital number, since it uses as much as digits as its factorization.

530731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 315, while the sum is 19.

The square root of 530731 is about 728.5128687951. The cubic root of 530731 is about 80.9639121872.

Adding to 530731 its reverse (137035), we get a palindrome (667766).

The spelling of 530731 in words is "five hundred thirty thousand, seven hundred thirty-one".