1126189 has 2 divisors, whose sum is σ = 1126190. Its totient is φ = 1126188.

The previous prime is 1126159. The next prime is 1126201. The reversal of 1126189 is 9816211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 714025 + 412164 = 845^2 + 642^2 .

It is a cyclic number.

It is not a de Polignac number, because 1126189 - 2¹¹ = 1124141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1126159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563094 + 563095.

It is an arithmetic number, because the mean of its divisors is an integer number (563095).

2^1126189 is an apocalyptic number.

It is an amenable number.

1126189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1126189 is an equidigital number, since it uses as much as digits as its factorization.

1126189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 28.

The square root of 1126189 is about 1061.2205237367. The cubic root of 1126189 is about 104.0408185433.

The spelling of 1126189 in words is "one million, one hundred twenty-six thousand, one hundred eighty-nine".