128448211 has 2 divisors, whose sum is σ = 128448212. Its totient is φ = 128448210.

The previous prime is 128448197. The next prime is 128448241. The reversal of 128448211 is 112844821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128448211 - 2¹⁹ = 127923923 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (128448241) 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, 64224105 + 64224106.

It is an arithmetic number, because the mean of its divisors is an integer number (64224106).

Almost surely, 2^128448211 is an apocalyptic number.

128448211 is a deficient number, since it is larger than the sum of its proper divisors (1).

128448211 is an equidigital number, since it uses as much as digits as its factorization.

128448211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4096, while the sum is 31.

The square root of 128448211 is about 11333.4995036838. The cubic root of 128448211 is about 504.5559747640. Note that the first 3 decimals are identical.

The spelling of 128448211 in words is "one hundred twenty-eight million, four hundred forty-eight thousand, two hundred eleven".