45003309 has 16 divisors (see below), whose sum is σ = 64915200. Its totient is φ = 27567936.

The previous prime is 45003269. The next prime is 45003311. The reversal of 45003309 is 90330054.

It is a de Polignac number, because none of the positive numbers 2^k-45003309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45003319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6412 + ... + 11450.

It is an arithmetic number, because the mean of its divisors is an integer number (4057200).

Almost surely, 2^45003309 is an apocalyptic number.

It is an amenable number.

45003309 is a deficient number, since it is larger than the sum of its proper divisors (19911891).

45003309 is a wasteful number, since it uses less digits than its factorization.

45003309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5284.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 45003309 is about 6708.4505662634. The cubic root of 45003309 is about 355.6980485760.

The spelling of 45003309 in words is "forty-five million, three thousand, three hundred nine".