12487441 has 4 divisors (see below), whose sum is σ = 12494772. Its totient is φ = 12480112.

The previous prime is 12487421. The next prime is 12487483. The reversal of 12487441 is 14478421.

It is a happy number.

12487441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 can be written as a sum of positive squares in 2 ways, for example, as 4100625 + 8386816 = 2025^2 + 2896^2 .

It is a cyclic number.

It is not a de Polignac number, because 12487441 - 2¹⁹ = 11963153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12487421) 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, 375 + ... + 5011.

It is an arithmetic number, because the mean of its divisors is an integer number (3123693).

Almost surely, 2^12487441 is an apocalyptic number.

It is an amenable number.

12487441 is a deficient number, since it is larger than the sum of its proper divisors (7331).

12487441 is an equidigital number, since it uses as much as digits as its factorization.

12487441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7330.

The product of its digits is 7168, while the sum is 31.

The square root of 12487441 is about 3533.7573487720. The cubic root of 12487441 is about 232.0016906833.

The spelling of 12487441 in words is "twelve million, four hundred eighty-seven thousand, four hundred forty-one".