1223050909 has 2 divisors, whose sum is σ = 1223050910. Its totient is φ = 1223050908.

The previous prime is 1223050891. The next prime is 1223050931. The reversal of 1223050909 is 9090503221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1105762009 + 117288900 = 33253^2 + 10830^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223050909 - 2⁵ = 1223050877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223050999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611525454 + 611525455.

It is an arithmetic number, because the mean of its divisors is an integer number (611525455).

Almost surely, 2^1223050909 is an apocalyptic number.

It is an amenable number.

1223050909 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223050909 is an equidigital number, since it uses as much as digits as its factorization.

1223050909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 1223050909 is about 34972.1447583645. The cubic root of 1223050909 is about 1069.4196955243.

The spelling of 1223050909 in words is "one billion, two hundred twenty-three million, fifty thousand, nine hundred nine".