12612543 has 16 divisors (see below), whose sum is σ = 17519712. Its totient is φ = 8068800.

The previous prime is 12612539. The next prime is 12612557. The reversal of 12612543 is 34521621.

12612543 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12612543 - 2² = 12612539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12612503) 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, 206733 + ... + 206793.

It is an arithmetic number, because the mean of its divisors is an integer number (1094982).

Almost surely, 2^12612543 is an apocalyptic number.

12612543 is a deficient number, since it is larger than the sum of its proper divisors (4907169).

12612543 is an frugal number, since it uses more digits than its factorization.

12612543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 105 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 12612543 is about 3551.4142253474. The cubic root of 12612543 is about 232.7738662047.

The spelling of 12612543 in words is "twelve million, six hundred twelve thousand, five hundred forty-three".