12012142 has 8 divisors (see below), whose sum is σ = 18966600. Its totient is φ = 5689944.

The previous prime is 12012137. The next prime is 12012157. The reversal of 12012142 is 24121021.

It is a happy number.

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, 158017 + ... + 158092.

It is an arithmetic number, because the mean of its divisors is an integer number (2370825).

Almost surely, 2^12012142 is an apocalyptic number.

12012142 is a deficient number, since it is larger than the sum of its proper divisors (6954458).

12012142 is a wasteful number, since it uses less digits than its factorization.

12012142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316130.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 12012142 is about 3465.8537187827. The cubic root of 12012142 is about 229.0200398168.

Adding to 12012142 its reverse (24121021), we get a palindrome (36133163).

It can be divided in two parts, 1201214 and 2, that added together give a square (1201216 = 1096²).

The spelling of 12012142 in words is "twelve million, twelve thousand, one hundred forty-two".