1223245577 has 2 divisors, whose sum is σ = 1223245578. Its totient is φ = 1223245576.

The previous prime is 1223245519. The next prime is 1223245589. The reversal of 1223245577 is 7755423221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1104631696 + 118613881 = 33236^2 + 10891^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223245577 - 2⁸ = 1223245321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1223245577.

It is not a weakly prime, because it can be changed into another prime (1223241577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611622788 + 611622789.

It is an arithmetic number, because the mean of its divisors is an integer number (611622789).

Almost surely, 2^1223245577 is an apocalyptic number.

It is an amenable number.

1223245577 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223245577 is an equidigital number, since it uses as much as digits as its factorization.

1223245577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 117600, while the sum is 38.

The square root of 1223245577 is about 34974.9278340928. The cubic root of 1223245577 is about 1069.4764308975.

Adding to 1223245577 its reverse (7755423221), we get a palindrome (8978668798).

The spelling of 1223245577 in words is "one billion, two hundred twenty-three million, two hundred forty-five thousand, five hundred seventy-seven".