12654871 has 4 divisors (see below), whose sum is σ = 12663000. Its totient is φ = 12646744.

The previous prime is 12654841. The next prime is 12654881. The reversal of 12654871 is 17845621.

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, and also an emirpimes, since its reverse is a distinct semiprime: 17845621 = 271 ⋅65851.

It is a cyclic number.

It is not a de Polignac number, because 12654871 - 2⁹ = 12654359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12654841) 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, 916 + ... + 5113.

It is an arithmetic number, because the mean of its divisors is an integer number (3165750).

Almost surely, 2^12654871 is an apocalyptic number.

12654871 is a deficient number, since it is larger than the sum of its proper divisors (8129).

12654871 is an equidigital number, since it uses as much as digits as its factorization.

12654871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8128.

The product of its digits is 13440, while the sum is 34.

The square root of 12654871 is about 3557.3685499256. The cubic root of 12654871 is about 233.0339736912.

The spelling of 12654871 in words is "twelve million, six hundred fifty-four thousand, eight hundred seventy-one".