45385309 has 2 divisors, whose sum is σ = 45385310. Its totient is φ = 45385308.

The previous prime is 45385303. The next prime is 45385367. The reversal of 45385309 is 90358354.

45385309 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., 23088025 + 22297284 = 4805^2 + 4722^2 .

It is a cyclic number.

It is not a de Polignac number, because 45385309 - 2⁷ = 45385181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45385303) 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, 22692654 + 22692655.

It is an arithmetic number, because the mean of its divisors is an integer number (22692655).

Almost surely, 2^45385309 is an apocalyptic number.

It is an amenable number.

45385309 is a deficient number, since it is larger than the sum of its proper divisors (1).

45385309 is an equidigital number, since it uses as much as digits as its factorization.

45385309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 45385309 is about 6736.8619549461. The cubic root of 45385309 is about 356.7016340752.

The spelling of 45385309 in words is "forty-five million, three hundred eighty-five thousand, three hundred nine".