530213261 has 2 divisors, whose sum is σ = 530213262. Its totient is φ = 530213260.

The previous prime is 530213239. The next prime is 530213269. The reversal of 530213261 is 162312035.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 488675236 + 41538025 = 22106^2 + 6445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-530213261 is a prime.

It is a super-2 number, since 2×530213261² = 562252204280508242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (530213269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265106630 + 265106631.

It is an arithmetic number, because the mean of its divisors is an integer number (265106631).

Almost surely, 2^530213261 is an apocalyptic number.

It is an amenable number.

530213261 is a deficient number, since it is larger than the sum of its proper divisors (1).

530213261 is an equidigital number, since it uses as much as digits as its factorization.

530213261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 530213261 is about 23026.3601335513. The cubic root of 530213261 is about 809.3757630141.

Adding to 530213261 its reverse (162312035), we get a palindrome (692525296).

The spelling of 530213261 in words is "five hundred thirty million, two hundred thirteen thousand, two hundred sixty-one".