12451871 has 8 divisors (see below), whose sum is σ = 13217904. Its totient is φ = 11689600.

The previous prime is 12451867. The next prime is 12451877. The reversal of 12451871 is 17815421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12451871 - 2² = 12451867 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 (12451877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8921 + ... + 10221.

It is an arithmetic number, because the mean of its divisors is an integer number (1652238).

Almost surely, 2^12451871 is an apocalyptic number.

12451871 is a deficient number, since it is larger than the sum of its proper divisors (766033).

12451871 is a wasteful number, since it uses less digits than its factorization.

12451871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881.

The product of its digits is 2240, while the sum is 29.

The square root of 12451871 is about 3528.7208730643. The cubic root of 12451871 is about 231.7811985367.

The spelling of 12451871 in words is "twelve million, four hundred fifty-one thousand, eight hundred seventy-one".