1191044 has 12 divisors (see below), whose sum is σ = 2097984. Its totient is φ = 591624.

The previous prime is 1191031. The next prime is 1191061. The reversal of 1191044 is 4401911.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 224 + ... + 1559.

It is an arithmetic number, because the mean of its divisors is an integer number (174832).

2^1191044 is an apocalyptic number.

It is an amenable number.

1191044 is a deficient number, since it is larger than the sum of its proper divisors (906940).

1191044 is a wasteful number, since it uses less digits than its factorization.

1191044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954 (or 1952 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1191044 is about 1091.3496231731. The cubic root of 1191044 is about 106.0008306568. Note that the first 3 decimals are identical.

Adding to 1191044 its reverse (4401911), we get a palindrome (5592955).

The spelling of 1191044 in words is "one million, one hundred ninety-one thousand, forty-four".