12543673 has 4 divisors (see below), whose sum is σ = 12730960. Its totient is φ = 12356388.

The previous prime is 12543653. The next prime is 12543677. The reversal of 12543673 is 37634521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12543673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12543677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93543 + ... + 93676.

It is an arithmetic number, because the mean of its divisors is an integer number (3182740).

Almost surely, 2^12543673 is an apocalyptic number.

It is an amenable number.

12543673 is a deficient number, since it is larger than the sum of its proper divisors (187287).

12543673 is an equidigital number, since it uses as much as digits as its factorization.

12543673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187286.

The product of its digits is 15120, while the sum is 31.

The square root of 12543673 is about 3541.7048154808. The cubic root of 12543673 is about 232.3494103274.

The spelling of 12543673 in words is "twelve million, five hundred forty-three thousand, six hundred seventy-three".