12999273 has 16 divisors (see below), whose sum is σ = 20106240. Its totient is φ = 7316496.

The previous prime is 12999263. The next prime is 12999289. The reversal of 12999273 is 37299921.

It is a happy number.

12999273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12999273 - 2⁵ = 12999241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12999223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3213 + ... + 6026.

It is an arithmetic number, because the mean of its divisors is an integer number (1256640).

Almost surely, 2^12999273 is an apocalyptic number.

It is an amenable number.

12999273 is a deficient number, since it is larger than the sum of its proper divisors (7106967).

12999273 is an equidigital number, since it uses as much as digits as its factorization.

12999273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9316.

The product of its digits is 61236, while the sum is 42.

The square root of 12999273 is about 3605.4504572938. The cubic root of 12999273 is about 235.1290855613.

The spelling of 12999273 in words is "twelve million, nine hundred ninety-nine thousand, two hundred seventy-three".