45344009 has 2 divisors, whose sum is σ = 45344010. Its totient is φ = 45344008.

The previous prime is 45343993. The next prime is 45344011. The reversal of 45344009 is 90044354.

45344009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44262409 + 1081600 = 6653^2 + 1040^2 .

It is a cyclic number.

It is not a de Polignac number, because 45344009 - 2⁴ = 45343993 is a prime.

It is a Sophie Germain prime.

Together with 45344011, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (45344029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22672004 + 22672005.

It is an arithmetic number, because the mean of its divisors is an integer number (22672005).

Almost surely, 2^45344009 is an apocalyptic number.

It is an amenable number.

45344009 is a deficient number, since it is larger than the sum of its proper divisors (1).

45344009 is an equidigital number, since it uses as much as digits as its factorization.

45344009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 45344009 is about 6733.7960319570. The cubic root of 45344009 is about 356.5934033970.

The spelling of 45344009 in words is "forty-five million, three hundred forty-four thousand, nine".