1125109 has 2 divisors, whose sum is σ = 1125110. Its totient is φ = 1125108.

The previous prime is 1125097. The next prime is 1125121. The reversal of 1125109 is 9015211.

It is a balanced prime because it is at equal distance from previous prime (1125097) and next prime (1125121).

It can be written as a sum of positive squares in only one way, i.e., 1096209 + 28900 = 1047^2 + 170^2 .

It is a cyclic number.

It is not a de Polignac number, because 1125109 - 2⁹ = 1124597 is a prime.

1125109 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1125139) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562554 + 562555.

It is an arithmetic number, because the mean of its divisors is an integer number (562555).

2^1125109 is an apocalyptic number.

It is an amenable number.

1125109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125109 is an equidigital number, since it uses as much as digits as its factorization.

1125109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 19.

The square root of 1125109 is about 1060.7115536280. The cubic root of 1125109 is about 104.0075499943.

The spelling of 1125109 in words is "one million, one hundred twenty-five thousand, one hundred nine".