12530443 has 4 divisors (see below), whose sum is σ = 13189960. Its totient is φ = 11870928.

The previous prime is 12530429. The next prime is 12530459. The reversal of 12530443 is 34403521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34403521 = 31 ⋅1109791.

It is a cyclic number.

It is not a de Polignac number, because 12530443 - 2¹⁷ = 12399371 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12530143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329730 + ... + 329767.

It is an arithmetic number, because the mean of its divisors is an integer number (3297490).

Almost surely, 2^12530443 is an apocalyptic number.

12530443 is a deficient number, since it is larger than the sum of its proper divisors (659517).

12530443 is an equidigital number, since it uses as much as digits as its factorization.

12530443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659516.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 12530443 is about 3539.8365781488. The cubic root of 12530443 is about 232.2676941226.

Adding to 12530443 its reverse (34403521), we get a palindrome (46933964).

The spelling of 12530443 in words is "twelve million, five hundred thirty thousand, four hundred forty-three".