12663142 has 4 divisors (see below), whose sum is σ = 18994716. Its totient is φ = 6331570.

The previous prime is 12663127. The next prime is 12663143. The reversal of 12663142 is 24136621.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12663143) 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 as a sum of consecutive naturals, namely, 3165784 + ... + 3165787.

It is an arithmetic number, because the mean of its divisors is an integer number (4748679).

Almost surely, 2^12663142 is an apocalyptic number.

12663142 is a deficient number, since it is larger than the sum of its proper divisors (6331574).

12663142 is an equidigital number, since it uses as much as digits as its factorization.

12663142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6331573.

The product of its digits is 1728, while the sum is 25.

The square root of 12663142 is about 3558.5308766400. The cubic root of 12663142 is about 233.0847315967.

Adding to 12663142 its reverse (24136621), we get a palindrome (36799763).

The spelling of 12663142 in words is "twelve million, six hundred sixty-three thousand, one hundred forty-two".