1199109 has 16 divisors (see below), whose sum is σ = 1707200. Its totient is φ = 746496.

The previous prime is 1199089. The next prime is 1199117. The reversal of 1199109 is 9019911.

It is not a de Polignac number, because 1199109 - 2⁸ = 1198853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1199189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6117 + ... + 6309.

It is an arithmetic number, because the mean of its divisors is an integer number (106700).

2^1199109 is an apocalyptic number.

1199109 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1199109 is a deficient number, since it is larger than the sum of its proper divisors (508091).

1199109 is a wasteful number, since it uses less digits than its factorization.

1199109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324.

The product of its (nonzero) digits is 729, while the sum is 30.

The square root of 1199109 is about 1095.0383554926. The cubic root of 1199109 is about 106.2395496065.

The spelling of 1199109 in words is "one million, one hundred ninety-nine thousand, one hundred nine".