1109071829 has 2 divisors, whose sum is σ = 1109071830. Its totient is φ = 1109071828.

The previous prime is 1109071811. The next prime is 1109071849. The reversal of 1109071829 is 9281709011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1056900100 + 52171729 = 32510^2 + 7223^2 .

It is a cyclic number.

It is not a de Polignac number, because 1109071829 - 2⁸ = 1109071573 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1109071792 and 1109071801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1109071849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554535914 + 554535915.

It is an arithmetic number, because the mean of its divisors is an integer number (554535915).

Almost surely, 2^1109071829 is an apocalyptic number.

It is an amenable number.

1109071829 is a deficient number, since it is larger than the sum of its proper divisors (1).

1109071829 is an equidigital number, since it uses as much as digits as its factorization.

1109071829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 38.

The square root of 1109071829 is about 33302.7300532554. The cubic root of 1109071829 is about 1035.1101282303.

The spelling of 1109071829 in words is "one billion, one hundred nine million, seventy-one thousand, eight hundred twenty-nine".