9945112 has 16 divisors (see below), whose sum is σ = 18910800. Its totient is φ = 4902240.

The previous prime is 9945109. The next prime is 9945121. The reversal of 9945112 is 2115499.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8187 + ... + 9322.

It is an arithmetic number, because the mean of its divisors is an integer number (1181925).

Almost surely, 2^9945112 is an apocalyptic number.

It is an amenable number.

9945112 is a deficient number, since it is larger than the sum of its proper divisors (8965688).

9945112 is a wasteful number, since it uses less digits than its factorization.

9945112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17586 (or 17582 counting only the distinct ones).

The product of its digits is 3240, while the sum is 31.

The square root of 9945112 is about 3153.5871638501. The cubic root of 9945112 is about 215.0485702418.

The spelling of 9945112 in words is "nine million, nine hundred forty-five thousand, one hundred twelve".