12142236 has 48 divisors (see below), whose sum is σ = 29240064. Its totient is φ = 3920256.

The previous prime is 12142231. The next prime is 12142237. The reversal of 12142236 is 63224121.

12142236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12142231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72625 + ... + 72791.

It is an arithmetic number, because the mean of its divisors is an integer number (609168).

Almost surely, 2^12142236 is an apocalyptic number.

It is an amenable number.

12142236 is an abundant number, since it is smaller than the sum of its proper divisors (17097828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12142236 is a wasteful number, since it uses less digits than its factorization.

12142236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330 (or 328 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 12142236 is about 3484.5711357354. The cubic root of 12142236 is about 229.8438511652.

Adding to 12142236 its reverse (63224121), we get a palindrome (75366357).

The spelling of 12142236 in words is "twelve million, one hundred forty-two thousand, two hundred thirty-six".