12078143 has 16 divisors (see below), whose sum is σ = 15945984. Its totient is φ = 8856960.

The previous prime is 12078139. The next prime is 12078161. The reversal of 12078143 is 34187021.

It is not a de Polignac number, because 12078143 - 2² = 12078139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12078103) by changing a digit.

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, 3305 + ... + 5922.

It is an arithmetic number, because the mean of its divisors is an integer number (996624).

Almost surely, 2^12078143 is an apocalyptic number.

12078143 is a deficient number, since it is larger than the sum of its proper divisors (3867841).

12078143 is a wasteful number, since it uses less digits than its factorization.

12078143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9262.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 12078143 is about 3475.3622832735. The cubic root of 12078143 is about 229.4387259427.

It can be divided in two parts, 12078 and 143, that added together give a palindrome (12221).

The spelling of 12078143 in words is "twelve million, seventy-eight thousand, one hundred forty-three".