12465871 has 4 divisors (see below), whose sum is σ = 13599144. Its totient is φ = 11332600.

The previous prime is 12465863. The next prime is 12465907. The reversal of 12465871 is 17856421.

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

It is a cyclic number.

It is not a de Polignac number, because 12465871 - 2³ = 12465863 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 (12465071) 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, 566620 + ... + 566641.

It is an arithmetic number, because the mean of its divisors is an integer number (3399786).

Almost surely, 2^12465871 is an apocalyptic number.

12465871 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12465871 is a deficient number, since it is larger than the sum of its proper divisors (1133273).

12465871 is a wasteful number, since it uses less digits than its factorization.

12465871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133272.

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

The square root of 12465871 is about 3530.7040374407. The cubic root of 12465871 is about 231.8680321114.

It can be divided in two parts, 1246 and 5871, that added together give a palindrome (7117).

The spelling of 12465871 in words is "twelve million, four hundred sixty-five thousand, eight hundred seventy-one".