1322073661 has 2 divisors, whose sum is σ = 1322073662. Its totient is φ = 1322073660.

The previous prime is 1322073617. The next prime is 1322073667. The reversal of 1322073661 is 1663702231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1059828025 + 262245636 = 32555^2 + 16194^2 .

It is a cyclic number.

It is not a de Polignac number, because 1322073661 - 2⁹ = 1322073149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1322073667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661036830 + 661036831.

It is an arithmetic number, because the mean of its divisors is an integer number (661036831).

Almost surely, 2^1322073661 is an apocalyptic number.

It is an amenable number.

1322073661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322073661 is an equidigital number, since it uses as much as digits as its factorization.

1322073661 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 31.

The square root of 1322073661 is about 36360.3308703317. The cubic root of 1322073661 is about 1097.5354356790.

Adding to 1322073661 its reverse (1663702231), we get a palindrome (2985775892).

The spelling of 1322073661 in words is "one billion, three hundred twenty-two million, seventy-three thousand, six hundred sixty-one".