1223241577 has 2 divisors, whose sum is σ = 1223241578. Its totient is φ = 1223241576.

The previous prime is 1223241563. The next prime is 1223241581. The reversal of 1223241577 is 7751423221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1003875856 + 219365721 = 31684^2 + 14811^2 .

It is an emirp because it is prime and its reverse (7751423221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1223241577 - 2⁷ = 1223241449 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223241077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611620788 + 611620789.

It is an arithmetic number, because the mean of its divisors is an integer number (611620789).

Almost surely, 2^1223241577 is an apocalyptic number.

It is an amenable number.

1223241577 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223241577 is an equidigital number, since it uses as much as digits as its factorization.

1223241577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23520, while the sum is 34.

The square root of 1223241577 is about 34974.8706502254. The cubic root of 1223241577 is about 1069.4752651707.

Adding to 1223241577 its reverse (7751423221), we get a palindrome (8974664798).

The spelling of 1223241577 in words is "one billion, two hundred twenty-three million, two hundred forty-one thousand, five hundred seventy-seven".