12228903 has 12 divisors (see below), whose sum is σ = 17763928. Its totient is φ = 8106480.

The previous prime is 12228901. The next prime is 12228917. The reversal of 12228903 is 30982221.

It is a happy number.

It is not a de Polignac number, because 12228903 - 2¹ = 12228901 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 (12228901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2125 + ... + 5382.

Almost surely, 2^12228903 is an apocalyptic number.

12228903 is a deficient number, since it is larger than the sum of its proper divisors (5535025).

12228903 is a wasteful number, since it uses less digits than its factorization.

12228903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7694 (or 7691 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 12228903 is about 3496.9848441193. The cubic root of 12228903 is about 230.3894033574.

It can be divided in two parts, 12228 and 903, that added together give a palindrome (13131).

The spelling of 12228903 in words is "twelve million, two hundred twenty-eight thousand, nine hundred three".