1109907 has 6 divisors (see below), whose sum is σ = 1603212. Its totient is φ = 739932.

The previous prime is 1109903. The next prime is 1109909. The reversal of 1109907 is 7099011.

It is not a de Polignac number, because 1109907 - 2² = 1109903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1109903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61653 + ... + 61670.

It is an arithmetic number, because the mean of its divisors is an integer number (267202).

2^1109907 is an apocalyptic number.

1109907 is a deficient number, since it is larger than the sum of its proper divisors (493305).

1109907 is a wasteful number, since it uses less digits than its factorization.

1109907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123329 (or 123326 counting only the distinct ones).

The product of its (nonzero) digits is 567, while the sum is 27.

The square root of 1109907 is about 1053.5212385140. The cubic root of 1109907 is about 103.5369888098.

It can be divided in two parts, 1109 and 907, that added together give a triangular number (2016 = T₆₃).

The spelling of 1109907 in words is "one million, one hundred nine thousand, nine hundred seven".