45009045 has 24 divisors (see below), whose sum is σ = 81409536. Its totient is φ = 22960608.

The previous prime is 45009001. The next prime is 45009061. The reversal of 45009045 is 54090054.

45009045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45009045 - 2¹⁸ = 44746901 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 20709 + ... + 22778.

It is an arithmetic number, because the mean of its divisors is an integer number (3392064).

Almost surely, 2^45009045 is an apocalyptic number.

45009045 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45009045 is a deficient number, since it is larger than the sum of its proper divisors (36400491).

45009045 is a wasteful number, since it uses less digits than its factorization.

45009045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43521 (or 43518 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 45009045 is about 6708.8780731207. The cubic root of 45009045 is about 355.7131600376.

Adding to 45009045 its reverse (54090054), we get a palindrome (99099099).

The spelling of 45009045 in words is "forty-five million, nine thousand, forty-five".