12143376 has 90 divisors (see below), whose sum is σ = 39556062. Its totient is φ = 3467520.

The previous prime is 12143371. The next prime is 12143387. The reversal of 12143376 is 67334121.

It can be written as a sum of positive squares in only one way, i.e., 11289600 + 853776 = 3360^2 + 924^2 .

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 (12143371) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6196 + ... + 7916.

Almost surely, 2^12143376 is an apocalyptic number.

12143376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12143376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19778031).

12143376 is an abundant number, since it is smaller than the sum of its proper divisors (27412686).

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

12143376 is a wasteful number, since it uses less digits than its factorization.

12143376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749 (or 1733 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 12143376 is about 3484.7347101322. The cubic root of 12143376 is about 229.8510440685.

Adding to 12143376 its reverse (67334121), we get a palindrome (79477497).

The spelling of 12143376 in words is "twelve million, one hundred forty-three thousand, three hundred seventy-six".