1122445409 has 2 divisors, whose sum is σ = 1122445410. Its totient is φ = 1122445408.

The previous prime is 1122445369. The next prime is 1122445447. The reversal of 1122445409 is 9045442211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 760380625 + 362064784 = 27575^2 + 19028^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122445409 is a prime.

It is not a weakly prime, because it can be changed into another prime (1122445309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561222704 + 561222705.

It is an arithmetic number, because the mean of its divisors is an integer number (561222705).

Almost surely, 2^1122445409 is an apocalyptic number.

It is an amenable number.

1122445409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122445409 is an equidigital number, since it uses as much as digits as its factorization.

1122445409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1122445409 is about 33502.9164252905. The cubic root of 1122445409 is about 1039.2540907012.

The spelling of 1122445409 in words is "one billion, one hundred twenty-two million, four hundred forty-five thousand, four hundred nine".