1130191 has 2 divisors, whose sum is σ = 1130192. Its totient is φ = 1130190.

The previous prime is 1130131. The next prime is 1130237. The reversal of 1130191 is 1910311.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1130191 - 2⁹ = 1129679 is a prime.

1130191 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1130131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565095 + 565096.

It is an arithmetic number, because the mean of its divisors is an integer number (565096).

2^1130191 is an apocalyptic number.

1130191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1130191 is an equidigital number, since it uses as much as digits as its factorization.

1130191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27, while the sum is 16.

The square root of 1130191 is about 1063.1044163204. The cubic root of 1130191 is about 104.1639118916.

The spelling of 1130191 in words is "one million, one hundred thirty thousand, one hundred ninety-one".