1131799 has 2 divisors, whose sum is σ = 1131800. Its totient is φ = 1131798.

The previous prime is 1131787. The next prime is 1131821. The reversal of 1131799 is 9971311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1131799 - 2⁷ = 1131671 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1131799.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565899 + 565900.

It is an arithmetic number, because the mean of its divisors is an integer number (565900).

2^1131799 is an apocalyptic number.

1131799 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131799 is an equidigital number, since it uses as much as digits as its factorization.

1131799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1701, while the sum is 31.

The square root of 1131799 is about 1063.8604231759. The cubic root of 1131799 is about 104.2132888545.

The spelling of 1131799 in words is "one million, one hundred thirty-one thousand, seven hundred ninety-nine".