12972003 has 32 divisors (see below), whose sum is σ = 21047040. Its totient is φ = 7004160.

The previous prime is 12971999. The next prime is 12972007. The reversal of 12972003 is 30027921.

It is an interprime number because it is at equal distance from previous prime (12971999) and next prime (12972007).

It is not a de Polignac number, because 12972003 - 2² = 12971999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12972007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10051 + ... + 11267.

It is an arithmetic number, because the mean of its divisors is an integer number (657720).

Almost surely, 2^12972003 is an apocalyptic number.

12972003 is a deficient number, since it is larger than the sum of its proper divisors (8075037).

12972003 is a wasteful number, since it uses less digits than its factorization.

12972003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 12972003 is about 3601.6666975166. Note that the first 4 decimals coincide. The cubic root of 12972003 is about 234.9645517680.

Adding to 12972003 its reverse (30027921), we get a palindrome (42999924).

The spelling of 12972003 in words is "twelve million, nine hundred seventy-two thousand, three".