530380309 has 2 divisors, whose sum is σ = 530380310. Its totient is φ = 530380308.

The previous prime is 530380283. The next prime is 530380327. The reversal of 530380309 is 903083035.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 453817809 + 76562500 = 21303^2 + 8750^2 .

It is a cyclic number.

It is not a de Polignac number, because 530380309 - 2⁹ = 530379797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (530320309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265190154 + 265190155.

It is an arithmetic number, because the mean of its divisors is an integer number (265190155).

Almost surely, 2^530380309 is an apocalyptic number.

It is an amenable number.

530380309 is a deficient number, since it is larger than the sum of its proper divisors (1).

530380309 is an equidigital number, since it uses as much as digits as its factorization.

530380309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 530380309 is about 23029.9871689065. The cubic root of 530380309 is about 809.4607542279.

The spelling of 530380309 in words is "five hundred thirty million, three hundred eighty thousand, three hundred nine".