12646255 has 4 divisors (see below), whose sum is σ = 15175512. Its totient is φ = 10117000.

The previous prime is 12646253. The next prime is 12646261. The reversal of 12646255 is 55264621.

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

It is not a de Polignac number, because 12646255 - 2¹ = 12646253 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12646253) 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, 1264621 + ... + 1264630.

It is an arithmetic number, because the mean of its divisors is an integer number (3793878).

Almost surely, 2^12646255 is an apocalyptic number.

12646255 is a deficient number, since it is larger than the sum of its proper divisors (2529257).

12646255 is an equidigital number, since it uses as much as digits as its factorization.

12646255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2529256.

The product of its digits is 14400, while the sum is 31.

The square root of 12646255 is about 3556.1573362268. The cubic root of 12646255 is about 232.9810750469.

The spelling of 12646255 in words is "twelve million, six hundred forty-six thousand, two hundred fifty-five".