12132543 has 16 divisors (see below), whose sum is σ = 17218656. Its totient is φ = 7572480.

The previous prime is 12132529. The next prime is 12132553. The reversal of 12132543 is 34523121.

It is not a de Polignac number, because 12132543 - 2⁶ = 12132479 is a prime.

It is a super-5 number, since 5×12132543⁵ (a number of 37 digits) contains 55555 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132553) 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, 11373 + ... + 12393.

It is an arithmetic number, because the mean of its divisors is an integer number (1076166).

Almost surely, 2^12132543 is an apocalyptic number.

12132543 is a deficient number, since it is larger than the sum of its proper divisors (5086113).

12132543 is a wasteful number, since it uses less digits than its factorization.

12132543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274.

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

The square root of 12132543 is about 3483.1800125747. The cubic root of 12132543 is about 229.7826743621.

Adding to 12132543 its reverse (34523121), we get a palindrome (46655664).

The spelling of 12132543 in words is "twelve million, one hundred thirty-two thousand, five hundred forty-three".