3146749 has 2 divisors, whose sum is σ = 3146750. Its totient is φ = 3146748.

The previous prime is 3146743. The next prime is 3146771. The reversal of 3146749 is 9476413.

It is a happy number.

3146749 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 can be written as a sum of positive squares in only one way, i.e., 2424249 + 722500 = 1557^2 + 850^2 .

It is a cyclic number.

It is not a de Polignac number, because 3146749 - 2⁹ = 3146237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3146743) 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, 1573374 + 1573375.

It is an arithmetic number, because the mean of its divisors is an integer number (1573375).

Almost surely, 2^3146749 is an apocalyptic number.

It is an amenable number.

3146749 is a deficient number, since it is larger than the sum of its proper divisors (1).

3146749 is an equidigital number, since it uses as much as digits as its factorization.

3146749 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 3146749 is about 1773.9078330060. The cubic root of 3146749 is about 146.5392735625.

The spelling of 3146749 in words is "three million, one hundred forty-six thousand, seven hundred forty-nine".