13361603 has 2 divisors, whose sum is σ = 13361604. Its totient is φ = 13361602.

The previous prime is 13361591. The next prime is 13361611. The reversal of 13361603 is 30616331.

13361603 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13361603 - 2⁴ = 13361587 is a prime.

It is not a weakly prime, because it can be changed into another prime (13361633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6680801 + 6680802.

It is an arithmetic number, because the mean of its divisors is an integer number (6680802).

Almost surely, 2^13361603 is an apocalyptic number.

13361603 is a deficient number, since it is larger than the sum of its proper divisors (1).

13361603 is an equidigital number, since it uses as much as digits as its factorization.

13361603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 13361603 is about 3655.3526505660. The cubic root of 13361603 is about 237.2936889781.

Adding to 13361603 its reverse (30616331), we get a palindrome (43977934).

The spelling of 13361603 in words is "thirteen million, three hundred sixty-one thousand, six hundred three".