12966955 has 4 divisors (see below), whose sum is σ = 15560352. Its totient is φ = 10373560.

The previous prime is 12966929. The next prime is 12966977. The reversal of 12966955 is 55966921.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12966955 - 2¹¹ = 12964907 is a prime.

It is a Duffinian 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, 1296691 + ... + 1296700.

It is an arithmetic number, because the mean of its divisors is an integer number (3890088).

Almost surely, 2^12966955 is an apocalyptic number.

12966955 is a deficient number, since it is larger than the sum of its proper divisors (2593397).

12966955 is an equidigital number, since it uses as much as digits as its factorization.

12966955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2593396.

The product of its digits is 145800, while the sum is 43.

The square root of 12966955 is about 3600.9658426594. The cubic root of 12966955 is about 234.9340693270.

The spelling of 12966955 in words is "twelve million, nine hundred sixty-six thousand, nine hundred fifty-five".