9065521 has 2 divisors, whose sum is σ = 9065522. Its totient is φ = 9065520.

The previous prime is 9065513. The next prime is 9065531. The reversal of 9065521 is 1255609.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6948496 + 2117025 = 2636^2 + 1455^2 .

It is an emirp because it is prime and its reverse (1255609) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9065521 - 2³ = 9065513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9065521.

It is not a weakly prime, because it can be changed into another prime (9065531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4532760 + 4532761.

It is an arithmetic number, because the mean of its divisors is an integer number (4532761).

Almost surely, 2^9065521 is an apocalyptic number.

It is an amenable number.

9065521 is a deficient number, since it is larger than the sum of its proper divisors (1).

9065521 is an equidigital number, since it uses as much as digits as its factorization.

9065521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 9065521 is about 3010.9003636786. The cubic root of 9065521 is about 208.5119370086.

The spelling of 9065521 in words is "nine million, sixty-five thousand, five hundred twenty-one".