12605903 has 2 divisors, whose sum is σ = 12605904. Its totient is φ = 12605902.

The previous prime is 12605899. The next prime is 12605921. The reversal of 12605903 is 30950621.

12605903 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12605903 - 2² = 12605899 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12605503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6302951 + 6302952.

It is an arithmetic number, because the mean of its divisors is an integer number (6302952).

Almost surely, 2^12605903 is an apocalyptic number.

12605903 is a deficient number, since it is larger than the sum of its proper divisors (1).

12605903 is an equidigital number, since it uses as much as digits as its factorization.

12605903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 12605903 is about 3550.4792634235. The cubic root of 12605903 is about 232.7330103205.

The spelling of 12605903 in words is "twelve million, six hundred five thousand, nine hundred three".