12603143 has 12 divisors (see below), whose sum is σ = 15135552. Its totient is φ = 10452960.

The previous prime is 12603133. The next prime is 12603161. The reversal of 12603143 is 34130621.

It is not a de Polignac number, because 12603143 - 2⁴ = 12603127 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 (12603133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2630 + ... + 5667.

It is an arithmetic number, because the mean of its divisors is an integer number (1261296).

Almost surely, 2^12603143 is an apocalyptic number.

12603143 is a deficient number, since it is larger than the sum of its proper divisors (2532409).

12603143 is an equidigital number, since it uses as much as digits as its factorization.

12603143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8342 (or 8335 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 12603143 is about 3550.0905622251. The cubic root of 12603143 is about 232.7160238343.

Adding to 12603143 its reverse (34130621), we get a palindrome (46733764).

The spelling of 12603143 in words is "twelve million, six hundred three thousand, one hundred forty-three".