859421159 has 2 divisors, whose sum is σ = 859421160. Its totient is φ = 859421158.

The previous prime is 859421141. The next prime is 859421191. The reversal of 859421159 is 951124958.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-859421159 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (859426159) 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, 429710579 + 429710580.

It is an arithmetic number, because the mean of its divisors is an integer number (429710580).

Almost surely, 2^859421159 is an apocalyptic number.

859421159 is a deficient number, since it is larger than the sum of its proper divisors (1).

859421159 is an equidigital number, since it uses as much as digits as its factorization.

859421159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 44.

The square root of 859421159 is about 29315.8857788742. The cubic root of 859421159 is about 950.7551369930.

The spelling of 859421159 in words is "eight hundred fifty-nine million, four hundred twenty-one thousand, one hundred fifty-nine".