320273 has 2 divisors, whose sum is σ = 320274. Its totient is φ = 320272.

The previous prime is 320269. The next prime is 320291. The reversal of 320273 is 372023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 283024 + 37249 = 532^2 + 193^2 .

It is an emirp because it is prime and its reverse (372023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320273 - 2² = 320269 is a prime.

It is not a weakly prime, because it can be changed into another prime (320213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160136 + 160137.

It is an arithmetic number, because the mean of its divisors is an integer number (160137).

2³²⁰²⁷³ is an apocalyptic number.

It is an amenable number.

320273 is a deficient number, since it is larger than the sum of its proper divisors (1).

320273 is an equidigital number, since it uses as much as digits as its factorization.

320273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 17.

The square root of 320273 is about 565.9266736955. The cubic root of 320273 is about 68.4184833147.

Adding to 320273 its reverse (372023), we get a palindrome (692296).

The spelling of 320273 in words is "three hundred twenty thousand, two hundred seventy-three", and thus it is an iban number.