3144749 has 2 divisors, whose sum is σ = 3144750. Its totient is φ = 3144748.

The previous prime is 3144737. The next prime is 3144751. The reversal of 3144749 is 9474413.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1974025 + 1170724 = 1405^2 + 1082^2 .

It is a cyclic number.

It is not a de Polignac number, because 3144749 - 2¹² = 3140653 is a prime.

It is a Sophie Germain prime.

Together with 3144751, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3140749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1572374 + 1572375.

It is an arithmetic number, because the mean of its divisors is an integer number (1572375).

Almost surely, 2^3144749 is an apocalyptic number.

It is an amenable number.

3144749 is a deficient number, since it is larger than the sum of its proper divisors (1).

3144749 is an equidigital number, since it uses as much as digits as its factorization.

3144749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 32.

The square root of 3144749 is about 1773.3440162585. The cubic root of 3144749 is about 146.5082213389.

The spelling of 3144749 in words is "three million, one hundred forty-four thousand, seven hundred forty-nine".