12143466 has 32 divisors (see below), whose sum is σ = 27501120. Its totient is φ = 3970512.

The previous prime is 12143459. The next prime is 12143473. The reversal of 12143466 is 66434121.

It is an interprime number because it is at equal distance from previous prime (12143459) and next prime (12143473).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 741 + ... + 4983.

It is an arithmetic number, because the mean of its divisors is an integer number (859410).

Almost surely, 2^12143466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12143466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13750560).

12143466 is an abundant number, since it is smaller than the sum of its proper divisors (15357654).

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

12143466 is a wasteful number, since it uses less digits than its factorization.

12143466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4307 (or 4301 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 12143466 is about 3484.7476235733. The cubic root of 12143466 is about 229.8516119101.

Adding to 12143466 its reverse (66434121), we get a palindrome (78577587).

The spelling of 12143466 in words is "twelve million, one hundred forty-three thousand, four hundred sixty-six".