1191028 has 6 divisors (see below), whose sum is σ = 2084306. Its totient is φ = 595512.

The previous prime is 1191019. The next prime is 1191031. The reversal of 1191028 is 8201911.

It can be written as a sum of positive squares in only one way, i.e., 725904 + 465124 = 852^2 + 682^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 148875 + ... + 148882.

2^1191028 is an apocalyptic number.

It is an amenable number.

1191028 is a deficient number, since it is larger than the sum of its proper divisors (893278).

1191028 is a wasteful number, since it uses less digits than its factorization.

1191028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297761 (or 297759 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 1191028 is about 1091.3422927753. The cubic root of 1191028 is about 106.0003559974. Note that the first 3 decimals are identical.

Adding to 1191028 its reverse (8201911), we get a palindrome (9392939).

The spelling of 1191028 in words is "one million, one hundred ninety-one thousand, twenty-eight".