530162821 has 2 divisors, whose sum is σ = 530162822. Its totient is φ = 530162820.

The previous prime is 530162797. The next prime is 530162863. The reversal of 530162821 is 128261035.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 497513025 + 32649796 = 22305^2 + 5714^2 .

It is a cyclic number.

It is not a de Polignac number, because 530162821 - 2⁹ = 530162309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 530162821.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (530162881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265081410 + 265081411.

It is an arithmetic number, because the mean of its divisors is an integer number (265081411).

Almost surely, 2^530162821 is an apocalyptic number.

It is an amenable number.

530162821 is a deficient number, since it is larger than the sum of its proper divisors (1).

530162821 is an equidigital number, since it uses as much as digits as its factorization.

530162821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 530162821 is about 23025.2648410393. The cubic root of 530162821 is about 809.3500964814.

The spelling of 530162821 in words is "five hundred thirty million, one hundred sixty-two thousand, eight hundred twenty-one".