12003142 has 16 divisors (see below), whose sum is σ = 18532800. Its totient is φ = 5827648.

The previous prime is 12003127. The next prime is 12003161. The reversal of 12003142 is 24130021.

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 in 7 ways as a sum of consecutive naturals, for example, 13578 + ... + 14434.

It is an arithmetic number, because the mean of its divisors is an integer number (1158300).

Almost surely, 2^12003142 is an apocalyptic number.

12003142 is a deficient number, since it is larger than the sum of its proper divisors (6529658).

12003142 is a wasteful number, since it uses less digits than its factorization.

12003142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 12003142 is about 3464.5550940922. Note that the first 3 decimals coincide. The cubic root of 12003142 is about 228.9628283900.

Adding to 12003142 its reverse (24130021), we get a palindrome (36133163).

The spelling of 12003142 in words is "twelve million, three thousand, one hundred forty-two".