12143486 has 8 divisors (see below), whose sum is σ = 18359040. Its totient is φ = 6023808.

The previous prime is 12143473. The next prime is 12143497. The reversal of 12143486 is 68434121.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23651 + ... + 24158.

It is an arithmetic number, because the mean of its divisors is an integer number (2294880).

Almost surely, 2^12143486 is an apocalyptic number.

12143486 is a deficient number, since it is larger than the sum of its proper divisors (6215554).

12143486 is a wasteful number, since it uses less digits than its factorization.

12143486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47938.

The product of its digits is 4608, while the sum is 29.

The square root of 12143486 is about 3484.7504932204. The cubic root of 12143486 is about 229.8517380968.

The spelling of 12143486 in words is "twelve million, one hundred forty-three thousand, four hundred eighty-six".