2149311839 has 2 divisors, whose sum is σ = 2149311840. Its totient is φ = 2149311838.

The previous prime is 2149311821. The next prime is 2149311859. The reversal of 2149311839 is 9381139412.

2149311839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2149311839 - 2²⁸ = 1880876383 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2149311796 and 2149311805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2149311859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074655919 + 1074655920.

It is an arithmetic number, because the mean of its divisors is an integer number (1074655920).

Almost surely, 2^2149311839 is an apocalyptic number.

2149311839 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149311839 is an equidigital number, since it uses as much as digits as its factorization.

2149311839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 41.

The square root of 2149311839 is about 46360.6712526900. The cubic root of 2149311839 is about 1290.5251630559.

The spelling of 2149311839 in words is "two billion, one hundred forty-nine million, three hundred eleven thousand, eight hundred thirty-nine".