12918003 has 16 divisors (see below), whose sum is σ = 19872000. Its totient is φ = 7311456.

The previous prime is 12917999. The next prime is 12918013. The reversal of 12918003 is 30081921.

It is not a de Polignac number, because 12918003 - 2² = 12917999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12918013) 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 15 ways as a sum of consecutive naturals, for example, 628 + ... + 5121.

It is an arithmetic number, because the mean of its divisors is an integer number (1242000).

Almost surely, 2^12918003 is an apocalyptic number.

12918003 is a deficient number, since it is larger than the sum of its proper divisors (6953997).

12918003 is a wasteful number, since it uses less digits than its factorization.

12918003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5866.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 12918003 is about 3594.1623502563. The cubic root of 12918003 is about 234.6380606146.

Adding to 12918003 its reverse (30081921), we get a palindrome (42999924).

The spelling of 12918003 in words is "twelve million, nine hundred eighteen thousand, three".