12603361 has 2 divisors, whose sum is σ = 12603362. Its totient is φ = 12603360.

The previous prime is 12603337. The next prime is 12603373. The reversal of 12603361 is 16330621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11015761 + 1587600 = 3319^2 + 1260^2 .

It is a cyclic number.

It is not a de Polignac number, because 12603361 - 2⁷ = 12603233 is a prime.

It is not a weakly prime, because it can be changed into another prime (12603161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6301680 + 6301681.

It is an arithmetic number, because the mean of its divisors is an integer number (6301681).

Almost surely, 2^12603361 is an apocalyptic number.

It is an amenable number.

12603361 is a deficient number, since it is larger than the sum of its proper divisors (1).

12603361 is an equidigital number, since it uses as much as digits as its factorization.

12603361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 12603361 is about 3550.1212655345. The cubic root of 12603361 is about 232.7173656107.

Adding to 12603361 its reverse (16330621), we get a palindrome (28933982).

The spelling of 12603361 in words is "twelve million, six hundred three thousand, three hundred sixty-one".