3149647 has 2 divisors, whose sum is σ = 3149648. Its totient is φ = 3149646.

The previous prime is 3149639. The next prime is 3149659. The reversal of 3149647 is 7469413.

It is a happy number.

3149647 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 3149647 - 2³ = 3149639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3149677) 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, 1574823 + 1574824.

It is an arithmetic number, because the mean of its divisors is an integer number (1574824).

Almost surely, 2^3149647 is an apocalyptic number.

3149647 is a deficient number, since it is larger than the sum of its proper divisors (1).

3149647 is an equidigital number, since it uses as much as digits as its factorization.

3149647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 34.

The square root of 3149647 is about 1774.7244856597. The cubic root of 3149647 is about 146.5842448979.

The spelling of 3149647 in words is "three million, one hundred forty-nine thousand, six hundred forty-seven".