3149747 has 2 divisors, whose sum is σ = 3149748. Its totient is φ = 3149746.

The previous prime is 3149683. The next prime is 3149749. The reversal of 3149747 is 7479413.

3149747 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 not a de Polignac number, because 3149747 - 2⁶ = 3149683 is a prime.

Together with 3149749, 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 (3149749) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1574873 + 1574874.

It is an arithmetic number, because the mean of its divisors is an integer number (1574874).

Almost surely, 2^3149747 is an apocalyptic number.

3149747 is a deficient number, since it is larger than the sum of its proper divisors (1).

3149747 is an equidigital number, since it uses as much as digits as its factorization.

3149747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 35.

The square root of 3149747 is about 1774.7526588232. The cubic root of 3149747 is about 146.5857962114.

The spelling of 3149747 in words is "three million, one hundred forty-nine thousand, seven hundred forty-seven".