1223404073 has 2 divisors, whose sum is σ = 1223404074. Its totient is φ = 1223404072.

The previous prime is 1223404037. The next prime is 1223404097. The reversal of 1223404073 is 3704043221.

Together with previous prime (1223404037) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 817502464 + 405901609 = 28592^2 + 20147^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223404073 - 2⁶ = 1223404009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223404003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611702036 + 611702037.

It is an arithmetic number, because the mean of its divisors is an integer number (611702037).

Almost surely, 2^1223404073 is an apocalyptic number.

It is an amenable number.

1223404073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223404073 is an equidigital number, since it uses as much as digits as its factorization.

1223404073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 1223404073 is about 34977.1936124098. The cubic root of 1223404073 is about 1069.5226196103.

Adding to 1223404073 its reverse (3704043221), we get a palindrome (4927447294).

The spelling of 1223404073 in words is "one billion, two hundred twenty-three million, four hundred four thousand, seventy-three".