12512143 has 8 divisors (see below), whose sum is σ = 14327712. Its totient is φ = 10703616.

The previous prime is 12512113. The next prime is 12512147. The reversal of 12512143 is 34121521.

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

It is not a de Polignac number, because 12512143 - 2⁵ = 12512111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12512143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12512147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2871 + ... + 5767.

It is an arithmetic number, because the mean of its divisors is an integer number (1790964).

Almost surely, 2^12512143 is an apocalyptic number.

12512143 is a deficient number, since it is larger than the sum of its proper divisors (1815569).

12512143 is an equidigital number, since it uses as much as digits as its factorization.

12512143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3521.

The product of its digits is 240, while the sum is 19.

The square root of 12512143 is about 3537.2507686055. The cubic root of 12512143 is about 232.1545677767.

Adding to 12512143 its reverse (34121521), we get a palindrome (46633664).

The spelling of 12512143 in words is "twelve million, five hundred twelve thousand, one hundred forty-three".