12143319 has 12 divisors (see below), whose sum is σ = 16387176. Its totient is φ = 7998592.

The previous prime is 12143317. The next prime is 12143353. The reversal of 12143319 is 91334121.

It is not a de Polignac number, because 12143319 - 2¹ = 12143317 is a prime.

It is a super-3 number, since 3×12143319³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12143317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38149 + ... + 38465.

It is an arithmetic number, because the mean of its divisors is an integer number (1365598).

Almost surely, 2^12143319 is an apocalyptic number.

12143319 is a deficient number, since it is larger than the sum of its proper divisors (4243857).

12143319 is an equidigital number, since it uses as much as digits as its factorization.

12143319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546 (or 433 counting only the distinct ones).

The product of its digits is 648, while the sum is 24.

The square root of 12143319 is about 3484.7265315947. The cubic root of 12143319 is about 229.8506844340.

The spelling of 12143319 in words is "twelve million, one hundred forty-three thousand, three hundred nineteen".