12812903 has 8 divisors (see below), whose sum is σ = 12999168. Its totient is φ = 12628224.

The previous prime is 12812893. The next prime is 12812963. The reversal of 12812903 is 30921821.

It is a Cunningham number, because it is equal to 234³-1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12812903 - 2⁸ = 12812647 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 (12812963) 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 7 ways as a sum of consecutive naturals, for example, 29375 + ... + 29807.

It is an arithmetic number, because the mean of its divisors is an integer number (1624896).

Almost surely, 2^12812903 is an apocalyptic number.

12812903 is a deficient number, since it is larger than the sum of its proper divisors (186265).

12812903 is a wasteful number, since it uses less digits than its factorization.

12812903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 12812903 is about 3579.5115588583. The cubic root of 12812903 is about 233.9999939124. Note that the first 5 decimals are identical.

It can be divided in two parts, 128 and 12903, that added together give a palindrome (13031).

The spelling of 12812903 in words is "twelve million, eight hundred twelve thousand, nine hundred three".