3139187 has 2 divisors, whose sum is σ = 3139188. Its totient is φ = 3139186.

The previous prime is 3139141. The next prime is 3139189. The reversal of 3139187 is 7819313.

It is a strong prime.

It is an emirp because it is prime and its reverse (7819313) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3139187 is a prime.

Together with 3139189, 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 (3139189) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1569593 + 1569594.

It is an arithmetic number, because the mean of its divisors is an integer number (1569594).

Almost surely, 2^3139187 is an apocalyptic number.

3139187 is a deficient number, since it is larger than the sum of its proper divisors (1).

3139187 is an equidigital number, since it uses as much as digits as its factorization.

3139187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 32.

The square root of 3139187 is about 1771.7750985946. The cubic root of 3139187 is about 146.4217958282.

The spelling of 3139187 in words is "three million, one hundred thirty-nine thousand, one hundred eighty-seven".