12938503 has 2 divisors, whose sum is σ = 12938504. Its totient is φ = 12938502.

The previous prime is 12938483. The next prime is 12938507. The reversal of 12938503 is 30583921.

It is a happy number.

12938503 is digitally balanced in base 2, 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 (30583921) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12938503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12938507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6469251 + 6469252.

It is an arithmetic number, because the mean of its divisors is an integer number (6469252).

Almost surely, 2^12938503 is an apocalyptic number.

12938503 is a deficient number, since it is larger than the sum of its proper divisors (1).

12938503 is an equidigital number, since it uses as much as digits as its factorization.

12938503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 12938503 is about 3597.0130664205. The cubic root of 12938503 is about 234.7621132787.

The spelling of 12938503 in words is "twelve million, nine hundred thirty-eight thousand, five hundred three".