3139811 has 2 divisors, whose sum is σ = 3139812. Its totient is φ = 3139810.

The previous prime is 3139789. The next prime is 3139813. The reversal of 3139811 is 1189313.

It is a strong prime.

It is an emirp because it is prime and its reverse (1189313) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3139811 is a prime.

Together with 3139813, 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 (3139813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1569905 + 1569906.

It is an arithmetic number, because the mean of its divisors is an integer number (1569906).

Almost surely, 2^3139811 is an apocalyptic number.

3139811 is a deficient number, since it is larger than the sum of its proper divisors (1).

3139811 is an equidigital number, since it uses as much as digits as its factorization.

3139811 is an evil number, because the sum of its binary digits is even.

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

The square root of 3139811 is about 1771.9511844292. The cubic root of 3139811 is about 146.4314969756.

The spelling of 3139811 in words is "three million, one hundred thirty-nine thousand, eight hundred eleven".