9945045 has 64 divisors (see below), whose sum is σ = 19918080. Its totient is φ = 4665600.

The previous prime is 9945043. The next prime is 9945049. The reversal of 9945045 is 5405499.

It is not a de Polignac number, because 9945045 - 2¹ = 9945043 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

9945045 is a Rhonda number in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9945043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 54855 + ... + 55035.

It is an arithmetic number, because the mean of its divisors is an integer number (311220).

Almost surely, 2^9945045 is an apocalyptic number.

It is an amenable number.

9945045 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

9945045 is a wasteful number, since it uses less digits than its factorization.

9945045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 9945045 is about 3153.5765410086. The cubic root of 9945045 is about 215.0480873149.

The spelling of 9945045 in words is "nine million, nine hundred forty-five thousand, forty-five".