12619903 has 4 divisors (see below), whose sum is σ = 12637720. Its totient is φ = 12602088.

The previous prime is 12619897. The next prime is 12619921. The reversal of 12619903 is 30991621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30991621 = 79 ⋅392299.

It is a cyclic number.

It is not a de Polignac number, because 12619903 - 2⁹ = 12619391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12619963) 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 in 3 ways as a sum of consecutive naturals, for example, 7800 + ... + 9277.

It is an arithmetic number, because the mean of its divisors is an integer number (3159430).

Almost surely, 2^12619903 is an apocalyptic number.

12619903 is a deficient number, since it is larger than the sum of its proper divisors (17817).

12619903 is an equidigital number, since it uses as much as digits as its factorization.

12619903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17816.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 12619903 is about 3552.4502811440. The cubic root of 12619903 is about 232.8191354925.

The spelling of 12619903 in words is "twelve million, six hundred nineteen thousand, nine hundred three".