12532143 has 16 divisors (see below), whose sum is σ = 18063360. Its totient is φ = 7682784.

The previous prime is 12532123. The next prime is 12532151. The reversal of 12532143 is 34123521.

It is not a de Polignac number, because 12532143 - 2¹⁴ = 12515759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12532103) 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 15 ways as a sum of consecutive naturals, for example, 14518 + ... + 15356.

It is an arithmetic number, because the mean of its divisors is an integer number (1128960).

Almost surely, 2^12532143 is an apocalyptic number.

12532143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12532143 is a deficient number, since it is larger than the sum of its proper divisors (5531217).

12532143 is a wasteful number, since it uses less digits than its factorization.

12532143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238.

The product of its digits is 720, while the sum is 21.

The square root of 12532143 is about 3540.0766940845. The cubic root of 12532143 is about 232.2781975348.

Adding to 12532143 its reverse (34123521), we get a palindrome (46655664).

The spelling of 12532143 in words is "twelve million, five hundred thirty-two thousand, one hundred forty-three".