1191164 has 12 divisors (see below), whose sum is σ = 2244984. Its totient is φ = 549744.

The previous prime is 1191163. The next prime is 1191187. The reversal of 1191164 is 4611911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1191163) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 11402 + ... + 11505.

It is an arithmetic number, because the mean of its divisors is an integer number (187082).

2^1191164 is an apocalyptic number.

It is an amenable number.

1191164 is a deficient number, since it is larger than the sum of its proper divisors (1053820).

1191164 is a wasteful number, since it uses less digits than its factorization.

1191164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22924 (or 22922 counting only the distinct ones).

The product of its digits is 216, while the sum is 23.

The square root of 1191164 is about 1091.4045995872. The cubic root of 1191164 is about 106.0043904673.

The spelling of 1191164 in words is "one million, one hundred ninety-one thousand, one hundred sixty-four".