1159909 has 2 divisors, whose sum is σ = 1159910. Its totient is φ = 1159908.

The previous prime is 1159901. The next prime is 1159919. The reversal of 1159909 is 9099511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 592900 + 567009 = 770^2 + 753^2 .

It is a cyclic number.

It is not a de Polignac number, because 1159909 - 2³ = 1159901 is a prime.

1159909 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1159901) 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, 579954 + 579955.

It is an arithmetic number, because the mean of its divisors is an integer number (579955).

2^1159909 is an apocalyptic number.

It is an amenable number.

1159909 is a deficient number, since it is larger than the sum of its proper divisors (1).

1159909 is an equidigital number, since it uses as much as digits as its factorization.

1159909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3645, while the sum is 34.

The square root of 1159909 is about 1076.9907149089. The cubic root of 1159909 is about 105.0690098119.

The spelling of 1159909 in words is "one million, one hundred fifty-nine thousand, nine hundred nine".