10304521 has 2 divisors, whose sum is σ = 10304522. Its totient is φ = 10304520.

The previous prime is 10304513. The next prime is 10304531. The reversal of 10304521 is 12540301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10017225 + 287296 = 3165^2 + 536^2 .

It is a cyclic number.

It is not a de Polignac number, because 10304521 - 2³ = 10304513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10304495 and 10304504.

It is not a weakly prime, because it can be changed into another prime (10304501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5152260 + 5152261.

It is an arithmetic number, because the mean of its divisors is an integer number (5152261).

Almost surely, 2^10304521 is an apocalyptic number.

It is an amenable number.

10304521 is a deficient number, since it is larger than the sum of its proper divisors (1).

10304521 is an equidigital number, since it uses as much as digits as its factorization.

10304521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 10304521 is about 3210.0655756542. The cubic root of 10304521 is about 217.6085405317.

Adding to 10304521 its reverse (12540301), we get a palindrome (22844822).

The spelling of 10304521 in words is "ten million, three hundred four thousand, five hundred twenty-one".