9045909 has 6 divisors (see below), whose sum is σ = 13066326. Its totient is φ = 6030600.

The previous prime is 9045901. The next prime is 9045913. The reversal of 9045909 is 9095409.

It can be written as a sum of positive squares in only one way, i.e., 6517809 + 2528100 = 2553^2 + 1590^2 .

It is not a de Polignac number, because 9045909 - 2³ = 9045901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9045901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 502542 + ... + 502559.

It is an arithmetic number, because the mean of its divisors is an integer number (2177721).

Almost surely, 2^9045909 is an apocalyptic number.

It is an amenable number.

9045909 is a deficient number, since it is larger than the sum of its proper divisors (4020417).

9045909 is a wasteful number, since it uses less digits than its factorization.

9045909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005107 (or 1005104 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 9045909 is about 3007.6417672323. The cubic root of 9045909 is about 208.3614662097.

The spelling of 9045909 in words is "nine million, forty-five thousand, nine hundred nine".