128273 has 2 divisors, whose sum is σ = 128274. Its totient is φ = 128272.

The previous prime is 128257. The next prime is 128287. The reversal of 128273 is 372821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73984 + 54289 = 272^2 + 233^2 .

It is a cyclic number.

It is not a de Polignac number, because 128273 - 2⁴ = 128257 is a prime.

It is not a weakly prime, because it can be changed into another prime (128203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64136 + 64137.

It is an arithmetic number, because the mean of its divisors is an integer number (64137).

2¹²⁸²⁷³ is an apocalyptic number.

It is an amenable number.

128273 is a deficient number, since it is larger than the sum of its proper divisors (1).

128273 is an equidigital number, since it uses as much as digits as its factorization.

128273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 23.

The square root of 128273 is about 358.1522022828. The cubic root of 128273 is about 50.4326455586.

The spelling of 128273 in words is "one hundred twenty-eight thousand, two hundred seventy-three".