12456851 has 8 divisors (see below), whose sum is σ = 13677744. Its totient is φ = 11250720.

The previous prime is 12456817. The next prime is 12456877. The reversal of 12456851 is 15865421.

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 12456851 - 2²² = 8262547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12456151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1880 + ... + 5333.

It is an arithmetic number, because the mean of its divisors is an integer number (1709718).

Almost surely, 2^12456851 is an apocalyptic number.

12456851 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12456851 is a deficient number, since it is larger than the sum of its proper divisors (1220893).

12456851 is a wasteful number, since it uses less digits than its factorization.

12456851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7381.

The product of its digits is 9600, while the sum is 32.

The square root of 12456851 is about 3529.4264406558. The cubic root of 12456851 is about 231.8120939345.

The spelling of 12456851 in words is "twelve million, four hundred fifty-six thousand, eight hundred fifty-one".