9001448321 has 2 divisors, whose sum is σ = 9001448322. Its totient is φ = 9001448320.

The previous prime is 9001448293. The next prime is 9001448329. The reversal of 9001448321 is 1238441009.

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., 8498074225 + 503374096 = 92185^2 + 22436^2 .

It is a cyclic number.

It is not a de Polignac number, because 9001448321 - 2¹⁰ = 9001447297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (9001448329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4500724160 + 4500724161.

It is an arithmetic number, because the mean of its divisors is an integer number (4500724161).

Almost surely, 2^9001448321 is an apocalyptic number.

It is an amenable number.

9001448321 is a deficient number, since it is larger than the sum of its proper divisors (1).

9001448321 is an equidigital number, since it uses as much as digits as its factorization.

9001448321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 9001448321 is about 94875.9628198839. The cubic root of 9001448321 is about 2080.1953959221.

The spelling of 9001448321 in words is "nine billion, one million, four hundred forty-eight thousand, three hundred twenty-one".