12043142 has 4 divisors (see below), whose sum is σ = 18064716. Its totient is φ = 6021570.

The previous prime is 12043117. The next prime is 12043151. The reversal of 12043142 is 24134021.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12043142.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3010784 + ... + 3010787.

It is an arithmetic number, because the mean of its divisors is an integer number (4516179).

Almost surely, 2^12043142 is an apocalyptic number.

12043142 is a deficient number, since it is larger than the sum of its proper divisors (6021574).

12043142 is an equidigital number, since it uses as much as digits as its factorization.

12043142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6021573.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 12043142 is about 3470.3230397183. The cubic root of 12043142 is about 229.2168829386.

Adding to 12043142 its reverse (24134021), we get a palindrome (36177163).

The spelling of 12043142 in words is "twelve million, forty-three thousand, one hundred forty-two".