12448231 has 4 divisors (see below), whose sum is σ = 12539232. Its totient is φ = 12357232.

The previous prime is 12448213. The next prime is 12448237. The reversal of 12448231 is 13284421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12448231 is a prime.

It is a super-2 number, since 2×12448231² = 309916910058722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12448196 and 12448205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12448237) 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, 45295 + ... + 45568.

It is an arithmetic number, because the mean of its divisors is an integer number (3134808).

Almost surely, 2^12448231 is an apocalyptic number.

12448231 is a deficient number, since it is larger than the sum of its proper divisors (91001).

12448231 is an equidigital number, since it uses as much as digits as its factorization.

12448231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91000.

The product of its digits is 1536, while the sum is 25.

The square root of 12448231 is about 3528.2050677363. The cubic root of 12448231 is about 231.7586111470.

The spelling of 12448231 in words is "twelve million, four hundred forty-eight thousand, two hundred thirty-one".