12631255 has 64 divisors (see below), whose sum is σ = 20901888. Its totient is φ = 7096320.

The previous prime is 12631237. The next prime is 12631261. The reversal of 12631255 is 55213621.

It is not a de Polignac number, because 12631255 - 2⁹ = 12630743 is a prime.

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 63 ways as a sum of consecutive naturals, for example, 177870 + ... + 177940.

It is an arithmetic number, because the mean of its divisors is an integer number (326592).

Almost surely, 2^12631255 is an apocalyptic number.

12631255 is a deficient number, since it is larger than the sum of its proper divisors (8270633).

12631255 is a wasteful number, since it uses less digits than its factorization.

12631255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136.

The product of its digits is 1800, while the sum is 25.

The square root of 12631255 is about 3554.0476924206. The cubic root of 12631255 is about 232.8889239514. Note that the first 3 decimals are identical.

Adding to 12631255 its reverse (55213621), we get a palindrome (67844876).

The spelling of 12631255 in words is "twelve million, six hundred thirty-one thousand, two hundred fifty-five".