1133191 has 2 divisors, whose sum is σ = 1133192. Its totient is φ = 1133190.

The previous prime is 1133189. The next prime is 1133219. The reversal of 1133191 is 1913311.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1133191 - 2¹ = 1133189 is a prime.

Together with 1133189, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1133131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566595 + 566596.

It is an arithmetic number, because the mean of its divisors is an integer number (566596).

2^1133191 is an apocalyptic number.

1133191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1133191 is an equidigital number, since it uses as much as digits as its factorization.

1133191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81, while the sum is 19.

The square root of 1133191 is about 1064.5144433027. The cubic root of 1133191 is about 104.2559953383.

The spelling of 1133191 in words is "one million, one hundred thirty-three thousand, one hundred ninety-one".