12481471 has 4 divisors (see below), whose sum is σ = 12488944. Its totient is φ = 12474000.

The previous prime is 12481463. The next prime is 12481493. The reversal of 12481471 is 17418421.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12481471 - 2³ = 12481463 is a prime.

It is a super-3 number, since 3×12481471³ (a number of 22 digits) contains 333 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 (12481421) 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, 46 + ... + 4996.

It is an arithmetic number, because the mean of its divisors is an integer number (3122236).

Almost surely, 2^12481471 is an apocalyptic number.

12481471 is a deficient number, since it is larger than the sum of its proper divisors (7473).

12481471 is an equidigital number, since it uses as much as digits as its factorization.

12481471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7472.

The product of its digits is 1792, while the sum is 28.

The square root of 12481471 is about 3532.9125378362. The cubic root of 12481471 is about 231.9647129744.

Adding to 12481471 its reverse (17418421), we get a palindrome (29899892).

The spelling of 12481471 in words is "twelve million, four hundred eighty-one thousand, four hundred seventy-one".