12143136 has 24 divisors (see below), whose sum is σ = 31875984. Its totient is φ = 4047680.

The previous prime is 12143119. The next prime is 12143137. The reversal of 12143136 is 63134121.

It is a tau number, because it is divible by the number of its divisors (24).

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

It is not an unprimeable number, because it can be changed into a prime (12143137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63150 + ... + 63341.

It is an arithmetic number, because the mean of its divisors is an integer number (1328166).

Almost surely, 2^12143136 is an apocalyptic number.

12143136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12143136 is an abundant number, since it is smaller than the sum of its proper divisors (19732848).

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

12143136 is a wasteful number, since it uses less digits than its factorization.

12143136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126504 (or 126496 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

The square root of 12143136 is about 3484.7002740551. The cubic root of 12143136 is about 229.8495298105.

Adding to 12143136 its reverse (63134121), we get a palindrome (75277257).

The spelling of 12143136 in words is "twelve million, one hundred forty-three thousand, one hundred thirty-six".