12730503 has 8 divisors (see below), whose sum is σ = 16993008. Its totient is φ = 8477504.

The previous prime is 12730493. The next prime is 12730511. The reversal of 12730503 is 30503721.

It is a happy number.

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 12730503 - 2⁶ = 12730439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12730503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12730573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1801 + ... + 5357.

It is an arithmetic number, because the mean of its divisors is an integer number (2124126).

Almost surely, 2^12730503 is an apocalyptic number.

12730503 is a deficient number, since it is larger than the sum of its proper divisors (4262505).

12730503 is a wasteful number, since it uses less digits than its factorization.

12730503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4753.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 12730503 is about 3567.9830436817. The cubic root of 12730503 is about 233.4972954153.

The spelling of 12730503 in words is "twelve million, seven hundred thirty thousand, five hundred three".