530300921 has 2 divisors, whose sum is σ = 530300922. Its totient is φ = 530300920.

The previous prime is 530300891. The next prime is 530300923. The reversal of 530300921 is 129003035.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 413552896 + 116748025 = 20336^2 + 10805^2 .

It is a cyclic number.

It is not a de Polignac number, because 530300921 - 2¹⁰ = 530299897 is a prime.

Together with 530300923, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (530300923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265150460 + 265150461.

It is an arithmetic number, because the mean of its divisors is an integer number (265150461).

Almost surely, 2^530300921 is an apocalyptic number.

It is an amenable number.

530300921 is a deficient number, since it is larger than the sum of its proper divisors (1).

530300921 is an equidigital number, since it uses as much as digits as its factorization.

530300921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 530300921 is about 23028.2635255027. The cubic root of 530300921 is about 809.4203651739.

Adding to 530300921 its reverse (129003035), we get a palindrome (659303956).

The spelling of 530300921 in words is "five hundred thirty million, three hundred thousand, nine hundred twenty-one".