12999266 has 16 divisors (see below), whose sum is σ = 22337856. Its totient is φ = 5557776.

The previous prime is 12999263. The next prime is 12999289. The reversal of 12999266 is 66299921.

It is not an unprimeable number, because it can be changed into a prime (12999263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6965 + ... + 8631.

It is an arithmetic number, because the mean of its divisors is an integer number (1396116).

Almost surely, 2^12999266 is an apocalyptic number.

12999266 is a deficient number, since it is larger than the sum of its proper divisors (9338590).

12999266 is a wasteful number, since it uses less digits than its factorization.

12999266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2233.

The product of its digits is 104976, while the sum is 44.

The square root of 12999266 is about 3605.4494865412. The cubic root of 12999266 is about 235.1290433563.

The spelling of 12999266 in words is "twelve million, nine hundred ninety-nine thousand, two hundred sixty-six".