12899273 has 4 divisors (see below), whose sum is σ = 13247940. Its totient is φ = 12550608.

The previous prime is 12899267. The next prime is 12899281. The reversal of 12899273 is 37299821.

It is a happy number.

12899273 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12369289 + 529984 = 3517^2 + 728^2 .

It is a cyclic number.

It is not a de Polignac number, because 12899273 - 2⁸ = 12899017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12899273.

It is not an unprimeable number, because it can be changed into a prime (12899203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174278 + ... + 174351.

It is an arithmetic number, because the mean of its divisors is an integer number (3311985).

Almost surely, 2^12899273 is an apocalyptic number.

It is an amenable number.

12899273 is a deficient number, since it is larger than the sum of its proper divisors (348667).

12899273 is an equidigital number, since it uses as much as digits as its factorization.

12899273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348666.

The product of its digits is 54432, while the sum is 41.

The square root of 12899273 is about 3591.5557910187. Note that the first 3 decimals coincide. The cubic root of 12899273 is about 234.5246040532.

The spelling of 12899273 in words is "twelve million, eight hundred ninety-nine thousand, two hundred seventy-three".