12243142 has 8 divisors (see below), whose sum is σ = 18499176. Its totient is φ = 6076752.

The previous prime is 12243139. The next prime is 12243151. The reversal of 12243142 is 24134221.

12243142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22068 + ... + 22615.

It is an arithmetic number, because the mean of its divisors is an integer number (2312397).

Almost surely, 2^12243142 is an apocalyptic number.

12243142 is a deficient number, since it is larger than the sum of its proper divisors (6256034).

12243142 is a wasteful number, since it uses less digits than its factorization.

12243142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44822.

The product of its digits is 384, while the sum is 19.

The square root of 12243142 is about 3499.0201485559. The cubic root of 12243142 is about 230.4787883794.

Adding to 12243142 its reverse (24134221), we get a palindrome (36377363).

It can be divided in two parts, 122 and 43142, that added together give a square (43264 = 208²).

The spelling of 12243142 in words is "twelve million, two hundred forty-three thousand, one hundred forty-two".