10331521 has 2 divisors, whose sum is σ = 10331522. Its totient is φ = 10331520.

The previous prime is 10331513. The next prime is 10331533. The reversal of 10331521 is 12513301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9834496 + 497025 = 3136^2 + 705^2 .

It is a cyclic number.

It is not a de Polignac number, because 10331521 - 2³ = 10331513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10331495 and 10331504.

It is not a weakly prime, because it can be changed into another prime (10331561) 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, 5165760 + 5165761.

It is an arithmetic number, because the mean of its divisors is an integer number (5165761).

Almost surely, 2^10331521 is an apocalyptic number.

It is an amenable number.

10331521 is a deficient number, since it is larger than the sum of its proper divisors (1).

10331521 is an equidigital number, since it uses as much as digits as its factorization.

10331521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 10331521 is about 3214.2683459848. The cubic root of 10331521 is about 217.7984347355.

Adding to 10331521 its reverse (12513301), we get a palindrome (22844822).

The spelling of 10331521 in words is "ten million, three hundred thirty-one thousand, five hundred twenty-one".