320272633 has 2 divisors, whose sum is σ = 320272634. Its totient is φ = 320272632.

The previous prime is 320272613. The next prime is 320272637. The reversal of 320272633 is 336272023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 296769529 + 23503104 = 17227^2 + 4848^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320272633 is a prime.

It is not a weakly prime, because it can be changed into another prime (320272637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160136316 + 160136317.

It is an arithmetic number, because the mean of its divisors is an integer number (160136317).

Almost surely, 2^320272633 is an apocalyptic number.

It is an amenable number.

320272633 is a deficient number, since it is larger than the sum of its proper divisors (1).

320272633 is an equidigital number, since it uses as much as digits as its factorization.

320272633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 28.

The square root of 320272633 is about 17896.1625216134. The cubic root of 320272633 is about 684.1845718118.

The spelling of 320272633 in words is "three hundred twenty million, two hundred seventy-two thousand, six hundred thirty-three".