1191113 has 16 divisors (see below), whose sum is σ = 1536000. Its totient is φ = 896400.

The previous prime is 1191109. The next prime is 1191119. The reversal of 1191113 is 3111911.

It is a cyclic number.

It is not a de Polignac number, because 1191113 - 2² = 1191109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1191091 and 1191100.

It is not an unprimeable number, because it can be changed into a prime (1191119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2138 + ... + 2636.

It is an arithmetic number, because the mean of its divisors is an integer number (96000).

2^1191113 is an apocalyptic number.

It is an amenable number.

1191113 is a deficient number, since it is larger than the sum of its proper divisors (344887).

1191113 is a wasteful number, since it uses less digits than its factorization.

1191113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548.

The product of its digits is 27, while the sum is 17.

The square root of 1191113 is about 1091.3812349495. The cubic root of 1191113 is about 106.0028775770.

The spelling of 1191113 in words is "one million, one hundred ninety-one thousand, one hundred thirteen".