859144841 has 2 divisors, whose sum is σ = 859144842. Its totient is φ = 859144840.

The previous prime is 859144813. The next prime is 859144879. The reversal of 859144841 is 148441958.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 844483600 + 14661241 = 29060^2 + 3829^2 .

It is a cyclic number.

It is not a de Polignac number, because 859144841 - 2²⁶ = 792035977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 859144792 and 859144801.

It is not a weakly prime, because it can be changed into another prime (859144241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429572420 + 429572421.

It is an arithmetic number, because the mean of its divisors is an integer number (429572421).

Almost surely, 2^859144841 is an apocalyptic number.

It is an amenable number.

859144841 is a deficient number, since it is larger than the sum of its proper divisors (1).

859144841 is an equidigital number, since it uses as much as digits as its factorization.

859144841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 184320, while the sum is 44.

The square root of 859144841 is about 29311.1726309269. The cubic root of 859144841 is about 950.6532316134.

The spelling of 859144841 in words is "eight hundred fifty-nine million, one hundred forty-four thousand, eight hundred forty-one".