320241533 has 2 divisors, whose sum is σ = 320241534. Its totient is φ = 320241532.

The previous prime is 320241499. The next prime is 320241539. The reversal of 320241533 is 335142023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210453049 + 109788484 = 14507^2 + 10478^2 .

It is a cyclic number.

It is not a de Polignac number, because 320241533 - 2⁶ = 320241469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320241499 and 320241508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320241539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160120766 + 160120767.

It is an arithmetic number, because the mean of its divisors is an integer number (160120767).

Almost surely, 2^320241533 is an apocalyptic number.

It is an amenable number.

320241533 is a deficient number, since it is larger than the sum of its proper divisors (1).

320241533 is an equidigital number, since it uses as much as digits as its factorization.

320241533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 320241533 is about 17895.2935991562. The cubic root of 320241533 is about 684.1624252334.

Adding to 320241533 its reverse (335142023), we get a palindrome (655383556).

The spelling of 320241533 in words is "three hundred twenty million, two hundred forty-one thousand, five hundred thirty-three".