128282171 has 2 divisors, whose sum is σ = 128282172. Its totient is φ = 128282170.

The previous prime is 128282159. The next prime is 128282173. The reversal of 128282171 is 171282821.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (171282821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128282171 - 2²² = 124087867 is a prime.

It is a super-3 number, since 3×128282171³ (a number of 25 digits) contains 333 as substring.

Together with 128282173, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (128282173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64141085 + 64141086.

It is an arithmetic number, because the mean of its divisors is an integer number (64141086).

Almost surely, 2^128282171 is an apocalyptic number.

128282171 is a deficient number, since it is larger than the sum of its proper divisors (1).

128282171 is an equidigital number, since it uses as much as digits as its factorization.

128282171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3584, while the sum is 32.

The square root of 128282171 is about 11326.1719481915. The cubic root of 128282171 is about 504.3384743993.

The spelling of 128282171 in words is "one hundred twenty-eight million, two hundred eighty-two thousand, one hundred seventy-one".