12643454 has 8 divisors (see below), whose sum is σ = 19225200. Its totient is φ = 6235056.

The previous prime is 12643453. The next prime is 12643459. The reversal of 12643454 is 45434621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12643453) 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 3 ways as a sum of consecutive naturals, for example, 43154 + ... + 43445.

It is an arithmetic number, because the mean of its divisors is an integer number (2403150).

Almost surely, 2^12643454 is an apocalyptic number.

12643454 is a deficient number, since it is larger than the sum of its proper divisors (6581746).

12643454 is an equidigital number, since it uses as much as digits as its factorization.

12643454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86674.

The product of its digits is 11520, while the sum is 29.

The square root of 12643454 is about 3555.7634904476. The cubic root of 12643454 is about 232.9638729008.

The spelling of 12643454 in words is "twelve million, six hundred forty-three thousand, four hundred fifty-four".