1122409709 has 2 divisors, whose sum is σ = 1122409710. Its totient is φ = 1122409708.

The previous prime is 1122409669. The next prime is 1122409723. The reversal of 1122409709 is 9079042211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 852464809 + 269944900 = 29197^2 + 16430^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122409709 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122409789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561204854 + 561204855.

It is an arithmetic number, because the mean of its divisors is an integer number (561204855).

Almost surely, 2^1122409709 is an apocalyptic number.

It is an amenable number.

1122409709 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122409709 is an equidigital number, since it uses as much as digits as its factorization.

1122409709 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 35.

The square root of 1122409709 is about 33502.3836316164. The cubic root of 1122409709 is about 1039.2430725664.

The spelling of 1122409709 in words is "one billion, one hundred twenty-two million, four hundred nine thousand, seven hundred nine".