9045749 has 2 divisors, whose sum is σ = 9045750. Its totient is φ = 9045748.

The previous prime is 9045733. The next prime is 9045779. The reversal of 9045749 is 9475409.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6300100 + 2745649 = 2510^2 + 1657^2 .

It is a cyclic number.

It is not a de Polignac number, because 9045749 - 2⁴ = 9045733 is a prime.

It is a Sophie Germain 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 (9045719) 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, 4522874 + 4522875.

It is an arithmetic number, because the mean of its divisors is an integer number (4522875).

Almost surely, 2^9045749 is an apocalyptic number.

It is an amenable number.

9045749 is a deficient number, since it is larger than the sum of its proper divisors (1).

9045749 is an equidigital number, since it uses as much as digits as its factorization.

9045749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 9045749 is about 3007.6151682022. The cubic root of 9045749 is about 208.3602377343.

The spelling of 9045749 in words is "nine million, forty-five thousand, seven hundred forty-nine".