12868142 has 8 divisors (see below), whose sum is σ = 22059696. Its totient is φ = 5514912.

The previous prime is 12868123. The next prime is 12868147. The reversal of 12868142 is 24186821.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 12868099 and 12868108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12868147) 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 3 ways as a sum of consecutive naturals, for example, 459563 + ... + 459590.

It is an arithmetic number, because the mean of its divisors is an integer number (2757462).

Almost surely, 2^12868142 is an apocalyptic number.

12868142 is a deficient number, since it is larger than the sum of its proper divisors (9191554).

12868142 is an equidigital number, since it uses as much as digits as its factorization.

12868142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919162.

The product of its digits is 6144, while the sum is 32.

The square root of 12868142 is about 3587.2192573078. The cubic root of 12868142 is about 234.3357854866.

The spelling of 12868142 in words is "twelve million, eight hundred sixty-eight thousand, one hundred forty-two".