3042749 has 2 divisors, whose sum is σ = 3042750. Its totient is φ = 3042748.

The previous prime is 3042731. The next prime is 3042757. The reversal of 3042749 is 9472403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2220100 + 822649 = 1490^2 + 907^2 .

It is a cyclic number.

It is not a de Polignac number, because 3042749 - 2⁸ = 3042493 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3042719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1521374 + 1521375.

It is an arithmetic number, because the mean of its divisors is an integer number (1521375).

Almost surely, 2^3042749 is an apocalyptic number.

It is an amenable number.

3042749 is a deficient number, since it is larger than the sum of its proper divisors (1).

3042749 is an equidigital number, since it uses as much as digits as its factorization.

3042749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 3042749 is about 1744.3477290953. The cubic root of 3042749 is about 144.9067811457.

The spelling of 3042749 in words is "three million, forty-two thousand, seven hundred forty-nine".