1109912 has 8 divisors (see below), whose sum is σ = 2081100. Its totient is φ = 554952.

The previous prime is 1109909. The next prime is 1109921. The reversal of 1109912 is 2199011.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69362 + ... + 69377.

2^1109912 is an apocalyptic number.

It is an amenable number.

1109912 is a deficient number, since it is larger than the sum of its proper divisors (971188).

1109912 is a wasteful number, since it uses less digits than its factorization.

1109912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138745 (or 138741 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 23.

The square root of 1109912 is about 1053.5236115057. The cubic root of 1109912 is about 103.5371442835.

It can be divided in two parts, 11099 and 12, that added together give a palindrome (11111).

The spelling of 1109912 in words is "one million, one hundred nine thousand, nine hundred twelve".