12143670 has 96 divisors (see below), whose sum is σ = 37034496. Its totient is φ = 2520000.

The previous prime is 12143639. The next prime is 12143687. The reversal of 12143670 is 7634121.

12143670 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 12143670.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15795 + ... + 16545.

It is an arithmetic number, because the mean of its divisors is an integer number (385776).

Almost surely, 2^12143670 is an apocalyptic number.

12143670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12143670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18517248).

12143670 is an abundant number, since it is smaller than the sum of its proper divisors (24890826).

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

12143670 is a wasteful number, since it uses less digits than its factorization.

12143670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 12143670 is about 3484.7768938628. The cubic root of 12143670 is about 229.8528990074.

Adding to 12143670 its reverse (7634121), we get a palindrome (19777791).

It can be divided in two parts, 1214 and 3670, that added together give a palindrome (4884).

The spelling of 12143670 in words is "twelve million, one hundred forty-three thousand, six hundred seventy".