1123255673 has 2 divisors, whose sum is σ = 1123255674. Its totient is φ = 1123255672.

The previous prime is 1123255649. The next prime is 1123255723. The reversal of 1123255673 is 3765523211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1047687424 + 75568249 = 32368^2 + 8693^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123255673 - 2¹⁴ = 1123239289 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1123225673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561627836 + 561627837.

It is an arithmetic number, because the mean of its divisors is an integer number (561627837).

Almost surely, 2^1123255673 is an apocalyptic number.

It is an amenable number.

1123255673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123255673 is an equidigital number, since it uses as much as digits as its factorization.

1123255673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 35.

The square root of 1123255673 is about 33515.0066835739. The cubic root of 1123255673 is about 1039.5041006729.

Adding to 1123255673 its reverse (3765523211), we get a palindrome (4888778884).

The spelling of 1123255673 in words is "one billion, one hundred twenty-three million, two hundred fifty-five thousand, six hundred seventy-three".