1223554601 has 2 divisors, whose sum is σ = 1223554602. Its totient is φ = 1223554600.

The previous prime is 1223554561. The next prime is 1223554627. The reversal of 1223554601 is 1064553221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1026882025 + 196672576 = 32045^2 + 14024^2 .

It is an emirp because it is prime and its reverse (1064553221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223554601 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223554681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611777300 + 611777301.

It is an arithmetic number, because the mean of its divisors is an integer number (611777301).

Almost surely, 2^1223554601 is an apocalyptic number.

It is an amenable number.

1223554601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223554601 is an equidigital number, since it uses as much as digits as its factorization.

1223554601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1223554601 is about 34979.3453483624. The cubic root of 1223554601 is about 1069.5664826048.

The spelling of 1223554601 in words is "one billion, two hundred twenty-three million, five hundred fifty-four thousand, six hundred one".