320953 has 2 divisors, whose sum is σ = 320954. Its totient is φ = 320952.

The previous prime is 320941. The next prime is 321007. The reversal of 320953 is 359023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 284089 + 36864 = 533^2 + 192^2 .

It is a cyclic number.

It is not a de Polignac number, because 320953 - 2¹⁷ = 189881 is a prime.

It is not a weakly prime, because it can be changed into another prime (320923) 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, 160476 + 160477.

It is an arithmetic number, because the mean of its divisors is an integer number (160477).

2³²⁰⁹⁵³ is an apocalyptic number.

It is an amenable number.

320953 is a deficient number, since it is larger than the sum of its proper divisors (1).

320953 is an equidigital number, since it uses as much as digits as its factorization.

320953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 320953 is about 566.5271396853. The cubic root of 320953 is about 68.4668708681.

Adding to 320953 its reverse (359023), we get a palindrome (679976).

The spelling of 320953 in words is "three hundred twenty thousand, nine hundred fifty-three".