530085191 has 2 divisors, whose sum is σ = 530085192. Its totient is φ = 530085190.

The previous prime is 530085137. The next prime is 530085217. The reversal of 530085191 is 191580035.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-530085191 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (530085131) 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, 265042595 + 265042596.

It is an arithmetic number, because the mean of its divisors is an integer number (265042596).

Almost surely, 2^530085191 is an apocalyptic number.

530085191 is a deficient number, since it is larger than the sum of its proper divisors (1).

530085191 is an equidigital number, since it uses as much as digits as its factorization.

530085191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 530085191 is about 23023.5790223849. The cubic root of 530085191 is about 809.3105910613.

The spelling of 530085191 in words is "five hundred thirty million, eighty-five thousand, one hundred ninety-one".