128259223 has 2 divisors, whose sum is σ = 128259224. Its totient is φ = 128259222.

The previous prime is 128259221. The next prime is 128259227. The reversal of 128259223 is 322952821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128259223 - 2¹ = 128259221 is a prime.

Together with 128259221, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128259221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64129611 + 64129612.

It is an arithmetic number, because the mean of its divisors is an integer number (64129612).

Almost surely, 2^128259223 is an apocalyptic number.

128259223 is a deficient number, since it is larger than the sum of its proper divisors (1).

128259223 is an equidigital number, since it uses as much as digits as its factorization.

128259223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 34.

The square root of 128259223 is about 11325.1588509831. The cubic root of 128259223 is about 504.3083994237.

The spelling of 128259223 in words is "one hundred twenty-eight million, two hundred fifty-nine thousand, two hundred twenty-three".