It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is an unprimeable number.
Almost surely, 212966518 is an apocalyptic number.
12966518 is an equidigital number, since it uses as much as digits as its factorization.
12966518 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7758.
The square root of 12966518 is about 3600.9051639831. The cubic root of 12966518 is about 234.9314301224.
The spelling of 12966518 in words is "twelve million, nine hundred sixty-six thousand, five hundred eighteen".