12546543 has 16 divisors (see below), whose sum is σ = 17095680. Its totient is φ = 8183136.

The previous prime is 12546491. The next prime is 12546559. The reversal of 12546543 is 34564521.

It is not a de Polignac number, because 12546543 - 2¹⁴ = 12530159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12546543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12546043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39421 + ... + 39737.

It is an arithmetic number, because the mean of its divisors is an integer number (1068480).

Almost surely, 2^12546543 is an apocalyptic number.

12546543 is a deficient number, since it is larger than the sum of its proper divisors (4549137).

12546543 is a wasteful number, since it uses less digits than its factorization.

12546543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566.

The product of its digits is 14400, while the sum is 30.

The square root of 12546543 is about 3542.1099644139. The cubic root of 12546543 is about 232.3671295382.

The spelling of 12546543 in words is "twelve million, five hundred forty-six thousand, five hundred forty-three".