112689009 has 16 divisors (see below), whose sum is σ = 167118400. Its totient is φ = 75048768.

The previous prime is 112689007. The next prime is 112689043. The reversal of 112689009 is 900986211.

It is not a de Polignac number, because 112689009 - 2¹ = 112689007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112689001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38802 + ... + 41604.

It is an arithmetic number, because the mean of its divisors is an integer number (10444900).

Almost surely, 2^112689009 is an apocalyptic number.

It is an amenable number.

112689009 is a deficient number, since it is larger than the sum of its proper divisors (54429391).

112689009 is a wasteful number, since it uses less digits than its factorization.

112689009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4301 (or 4295 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 112689009 is about 10615.5079482802. The cubic root of 112689009 is about 483.0148909417.

The spelling of 112689009 in words is "one hundred twelve million, six hundred eighty-nine thousand, nine".