530205191 has 2 divisors, whose sum is σ = 530205192. Its totient is φ = 530205190.

The previous prime is 530205139. The next prime is 530205217. The reversal of 530205191 is 191502035.

It is an a-pointer prime, because the next prime (530205217) can be obtained adding 530205191 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 530205191 - 2¹⁰ = 530204167 is a prime.

It is a super-2 number, since 2×530205191² = 562235089126692962, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 530205191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (530205101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265102595 + 265102596.

It is an arithmetic number, because the mean of its divisors is an integer number (265102596).

Almost surely, 2^530205191 is an apocalyptic number.

530205191 is a deficient number, since it is larger than the sum of its proper divisors (1).

530205191 is an equidigital number, since it uses as much as digits as its factorization.

530205191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 530205191 is about 23026.1848989363. The cubic root of 530205191 is about 809.3716566818.

The spelling of 530205191 in words is "five hundred thirty million, two hundred five thousand, one hundred ninety-one".