12663542 has 8 divisors (see below), whose sum is σ = 19236000. Its totient is φ = 6251544.

The previous prime is 12663493. The next prime is 12663569. The reversal of 12663542 is 24536621.

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

It is a congruent number.

It is an unprimeable number.

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, 39917 + ... + 40232.

It is an arithmetic number, because the mean of its divisors is an integer number (2404500).

Almost surely, 2^12663542 is an apocalyptic number.

12663542 is a deficient number, since it is larger than the sum of its proper divisors (6572458).

12663542 is an equidigital number, since it uses as much as digits as its factorization.

12663542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80230.

The product of its digits is 8640, while the sum is 29.

The square root of 12663542 is about 3558.5870791650. The cubic root of 12663542 is about 233.0871857773.

The spelling of 12663542 in words is "twelve million, six hundred sixty-three thousand, five hundred forty-two".