12863142 has 12 divisors (see below), whose sum is σ = 27870180. Its totient is φ = 4287708.

The previous prime is 12863117. The next prime is 12863173. The reversal of 12863142 is 24136821.

12863142 is a `hidden beast` number, since 1 + 28 + 631 + 4 + 2 = 666.

It is a super-2 number, since 2×12863142² = 330920844224328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 357292 + ... + 357327.

It is an arithmetic number, because the mean of its divisors is an integer number (2322515).

Almost surely, 2^12863142 is an apocalyptic number.

12863142 is an abundant number, since it is smaller than the sum of its proper divisors (15007038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12863142 is a wasteful number, since it uses less digits than its factorization.

12863142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714627 (or 714624 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 12863142 is about 3586.5222709472. The cubic root of 12863142 is about 234.3054306585.

Adding to 12863142 its reverse (24136821), we get a palindrome (36999963).

The spelling of 12863142 in words is "twelve million, eight hundred sixty-three thousand, one hundred forty-two".