12530217 has 16 divisors (see below), whose sum is σ = 19209600. Its totient is φ = 7116672.

The previous prime is 12530213. The next prime is 12530251. The reversal of 12530217 is 71203521.

12530217 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12530217 - 2² = 12530213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 12530193 and 12530202.

It is not an unprimeable number, because it can be changed into a prime (12530213) 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, 1909 + ... + 5357.

It is an arithmetic number, because the mean of its divisors is an integer number (1200600).

Almost surely, 2^12530217 is an apocalyptic number.

It is an amenable number.

12530217 is a deficient number, since it is larger than the sum of its proper divisors (6679383).

12530217 is a wasteful number, since it uses less digits than its factorization.

12530217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3632.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 12530217 is about 3539.8046556272. The cubic root of 12530217 is about 232.2662977150.

Adding to 12530217 its reverse (71203521), we get a palindrome (83733738).

The spelling of 12530217 in words is "twelve million, five hundred thirty thousand, two hundred seventeen".