530256121 has 2 divisors, whose sum is σ = 530256122. Its totient is φ = 530256120.

The previous prime is 530256107. The next prime is 530256179. The reversal of 530256121 is 121652035.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 491952400 + 38303721 = 22180^2 + 6189^2 .

It is a cyclic number.

It is not a de Polignac number, because 530256121 - 2¹⁹ = 529731833 is a prime.

It is not a weakly prime, because it can be changed into another prime (530256721) 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, 265128060 + 265128061.

It is an arithmetic number, because the mean of its divisors is an integer number (265128061).

Almost surely, 2^530256121 is an apocalyptic number.

It is an amenable number.

530256121 is a deficient number, since it is larger than the sum of its proper divisors (1).

530256121 is an equidigital number, since it uses as much as digits as its factorization.

530256121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 530256121 is about 23027.2907872377. The cubic root of 530256121 is about 809.3975711639.

The spelling of 530256121 in words is "five hundred thirty million, two hundred fifty-six thousand, one hundred twenty-one".