1191368 has 8 divisors (see below), whose sum is σ = 2233830. Its totient is φ = 595680.

The previous prime is 1191353. The next prime is 1191373. The reversal of 1191368 is 8631911.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 996004 + 195364 = 998^2 + 442^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1191368² = 2838715422848, which contains 22 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1191368.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74453 + ... + 74468.

2^1191368 is an apocalyptic number.

It is an amenable number.

1191368 is a deficient number, since it is larger than the sum of its proper divisors (1042462).

1191368 is a wasteful number, since it uses less digits than its factorization.

1191368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148927 (or 148923 counting only the distinct ones).

The product of its digits is 1296, while the sum is 29.

The square root of 1191368 is about 1091.4980531361. The cubic root of 1191368 is about 106.0104415963.

The spelling of 1191368 in words is "one million, one hundred ninety-one thousand, three hundred sixty-eight".