128292859 has 2 divisors, whose sum is σ = 128292860. Its totient is φ = 128292858.

The previous prime is 128292817. The next prime is 128292887. The reversal of 128292859 is 958292821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128292859 - 2⁹ = 128292347 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (128292809) 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, 64146429 + 64146430.

It is an arithmetic number, because the mean of its divisors is an integer number (64146430).

Almost surely, 2^128292859 is an apocalyptic number.

128292859 is a deficient number, since it is larger than the sum of its proper divisors (1).

128292859 is an equidigital number, since it uses as much as digits as its factorization.

128292859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 46.

The square root of 128292859 is about 11326.6437659176. The cubic root of 128292859 is about 504.3524805544.

The spelling of 128292859 in words is "one hundred twenty-eight million, two hundred ninety-two thousand, eight hundred fifty-nine".