9945169 has 8 divisors (see below), whose sum is σ = 10959872. Its totient is φ = 8966160.

The previous prime is 9945161. The next prime is 9945181. The reversal of 9945169 is 9615499.

9945169 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9945169 - 2³ = 9945161 is a prime.

It is a super-2 number, since 2×9945169² = 197812772877122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

9945169 is a lucky number.

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 in 7 ways as a sum of consecutive naturals, for example, 8337 + ... + 9454.

It is an arithmetic number, because the mean of its divisors is an integer number (1369984).

Almost surely, 2^9945169 is an apocalyptic number.

It is an amenable number.

9945169 is a deficient number, since it is larger than the sum of its proper divisors (1014703).

9945169 is a wasteful number, since it uses less digits than its factorization.

9945169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17847.

The product of its digits is 87480, while the sum is 43.

The square root of 9945169 is about 3153.5962011646. The cubic root of 9945169 is about 215.0489810884.

The spelling of 9945169 in words is "nine million, nine hundred forty-five thousand, one hundred sixty-nine".