3811139 has 2 divisors, whose sum is σ = 3811140. Its totient is φ = 3811138.

The previous prime is 3811127. The next prime is 3811141. The reversal of 3811139 is 9311183.

3811139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3811139 is a prime.

Together with 3811141, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3811189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1905569 + 1905570.

It is an arithmetic number, because the mean of its divisors is an integer number (1905570).

Almost surely, 2^3811139 is an apocalyptic number.

3811139 is a deficient number, since it is larger than the sum of its proper divisors (1).

3811139 is an equidigital number, since it uses as much as digits as its factorization.

3811139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 26.

The square root of 3811139 is about 1952.2138714803. The cubic root of 3811139 is about 156.2014027000.

The spelling of 3811139 in words is "three million, eight hundred eleven thousand, one hundred thirty-nine".