2149311859 has 2 divisors, whose sum is σ = 2149311860. Its totient is φ = 2149311858.

The previous prime is 2149311839. The next prime is 2149311919. The reversal of 2149311859 is 9581139412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2149311859 - 2⁹ = 2149311347 is a prime.

It is not a weakly prime, because it can be changed into another prime (2149311839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074655929 + 1074655930.

It is an arithmetic number, because the mean of its divisors is an integer number (1074655930).

Almost surely, 2^2149311859 is an apocalyptic number.

2149311859 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149311859 is an equidigital number, since it uses as much as digits as its factorization.

2149311859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 43.

The square root of 2149311859 is about 46360.6714683901. The cubic root of 2149311859 is about 1290.5251670588.

The spelling of 2149311859 in words is "two billion, one hundred forty-nine million, three hundred eleven thousand, eight hundred fifty-nine".