12560231 has 4 divisors (see below), whose sum is σ = 13106352. Its totient is φ = 12014112.

The previous prime is 12560221. The next prime is 12560267. The reversal of 12560231 is 13206521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13206521 = 37 ⋅356933.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12560231 is a prime.

It is a super-2 number, since 2×12560231² = 315518805546722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12560201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273026 + ... + 273071.

It is an arithmetic number, because the mean of its divisors is an integer number (3276588).

Almost surely, 2^12560231 is an apocalyptic number.

12560231 is a deficient number, since it is larger than the sum of its proper divisors (546121).

12560231 is an equidigital number, since it uses as much as digits as its factorization.

12560231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546120.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 12560231 is about 3544.0416193944. The cubic root of 12560231 is about 232.4516012873.

Adding to 12560231 its reverse (13206521), we get a palindrome (25766752).

The spelling of 12560231 in words is "twelve million, five hundred sixty thousand, two hundred thirty-one".