12143306 has 16 divisors (see below), whose sum is σ = 20891520. Its totient is φ = 5185680.

The previous prime is 12143303. The next prime is 12143309. The reversal of 12143306 is 60334121.

12143306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12143303) and next prime (12143309).

It is not an unprimeable number, because it can be changed into a prime (12143303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2960 + ... + 5748.

It is an arithmetic number, because the mean of its divisors is an integer number (1305720).

Almost surely, 2^12143306 is an apocalyptic number.

12143306 is a deficient number, since it is larger than the sum of its proper divisors (8748214).

12143306 is a wasteful number, since it uses less digits than its factorization.

12143306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3109.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 12143306 is about 3484.7246663115. The cubic root of 12143306 is about 229.8506024120.

Adding to 12143306 its reverse (60334121), we get a palindrome (72477427).

The spelling of 12143306 in words is "twelve million, one hundred forty-three thousand, three hundred six".