9945164 has 6 divisors (see below), whose sum is σ = 17404044. Its totient is φ = 4972580.

The previous prime is 9945161. The next prime is 9945181. The reversal of 9945164 is 4615499.

It is not an unprimeable number, because it can be changed into a prime (9945161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1243142 + ... + 1243149.

It is an arithmetic number, because the mean of its divisors is an integer number (2900674).

Almost surely, 2^9945164 is an apocalyptic number.

It is an amenable number.

9945164 is a deficient number, since it is larger than the sum of its proper divisors (7458880).

9945164 is a wasteful number, since it uses less digits than its factorization.

9945164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2486295 (or 2486293 counting only the distinct ones).

The product of its digits is 38880, while the sum is 38.

The square root of 9945164 is about 3153.5954084188. The cubic root of 9945164 is about 215.0489450493.

The spelling of 9945164 in words is "nine million, nine hundred forty-five thousand, one hundred sixty-four".