12867255 has 20 divisors (see below), whose sum is σ = 23066472. Its totient is φ = 6862320.

The previous prime is 12867247. The next prime is 12867269. The reversal of 12867255 is 55276821.

It is a happy number.

It is not a de Polignac number, because 12867255 - 2³ = 12867247 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent 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 19 ways as a sum of consecutive naturals, for example, 15481 + ... + 16290.

Almost surely, 2^12867255 is an apocalyptic number.

12867255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12867255 is a deficient number, since it is larger than the sum of its proper divisors (10199217).

12867255 is an equidigital number, since it uses as much as digits as its factorization.

12867255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31788 (or 31779 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 12867255 is about 3587.0956218088. The cubic root of 12867255 is about 234.3304011139.

The spelling of 12867255 in words is "twelve million, eight hundred sixty-seven thousand, two hundred fifty-five".