13445203 has 2 divisors, whose sum is σ = 13445204. Its totient is φ = 13445202.

The previous prime is 13445189. The next prime is 13445207. The reversal of 13445203 is 30254431.

13445203 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 an emirp because it is prime and its reverse (30254431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13445203 - 2¹⁷ = 13314131 is a prime.

It is a super-2 number, since 2×13445203² = 361546967422418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13445207) 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, 6722601 + 6722602.

It is an arithmetic number, because the mean of its divisors is an integer number (6722602).

Almost surely, 2^13445203 is an apocalyptic number.

13445203 is a deficient number, since it is larger than the sum of its proper divisors (1).

13445203 is an equidigital number, since it uses as much as digits as its factorization.

13445203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 13445203 is about 3666.7701046016. The cubic root of 13445203 is about 237.7875549319.

Adding to 13445203 its reverse (30254431), we get a palindrome (43699634).

The spelling of 13445203 in words is "thirteen million, four hundred forty-five thousand, two hundred three".