128210273 has 2 divisors, whose sum is σ = 128210274. Its totient is φ = 128210272.

The previous prime is 128210267. The next prime is 128210287. The reversal of 128210273 is 372012821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119071744 + 9138529 = 10912^2 + 3023^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128210273 is a prime.

It is not a weakly prime, because it can be changed into another prime (128210263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64105136 + 64105137.

It is an arithmetic number, because the mean of its divisors is an integer number (64105137).

Almost surely, 2^128210273 is an apocalyptic number.

It is an amenable number.

128210273 is a deficient number, since it is larger than the sum of its proper divisors (1).

128210273 is an equidigital number, since it uses as much as digits as its factorization.

128210273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 128210273 is about 11322.9975271568. The cubic root of 128210273 is about 504.2442350003.

The spelling of 128210273 in words is "one hundred twenty-eight million, two hundred ten thousand, two hundred seventy-three".