12143057 has 8 divisors (see below), whose sum is σ = 12705984. Its totient is φ = 11583088.

The previous prime is 12143023. The next prime is 12143063. The reversal of 12143057 is 75034121.

12143057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12143057 - 2²⁰ = 11094481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12143017) 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, 15323 + ... + 16095.

It is an arithmetic number, because the mean of its divisors is an integer number (1588248).

Almost surely, 2^12143057 is an apocalyptic number.

It is an amenable number.

12143057 is a deficient number, since it is larger than the sum of its proper divisors (562927).

12143057 is an equidigital number, since it uses as much as digits as its factorization.

12143057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 12143057 is about 3484.6889387720. The cubic root of 12143057 is about 229.8490313629.

Adding to 12143057 its reverse (75034121), we get a palindrome (87177178).

The spelling of 12143057 in words is "twelve million, one hundred forty-three thousand, fifty-seven".