12631105 has 16 divisors (see below), whose sum is σ = 16473600. Its totient is φ = 9262080.

The previous prime is 12631079. The next prime is 12631111. The reversal of 12631105 is 50113621.

It is not a de Polignac number, because 12631105 - 2⁷ = 12630977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 801 + ... + 5089.

It is an arithmetic number, because the mean of its divisors is an integer number (1029600).

Almost surely, 2^12631105 is an apocalyptic number.

It is an amenable number.

12631105 is a deficient number, since it is larger than the sum of its proper divisors (3842495).

12631105 is a wasteful number, since it uses less digits than its factorization.

12631105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4344.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 12631105 is about 3554.0265896586. The cubic root of 12631105 is about 232.8880020721. Note that the first 3 decimals are identical.

Adding to 12631105 its reverse (50113621), we get a palindrome (62744726).

The spelling of 12631105 in words is "twelve million, six hundred thirty-one thousand, one hundred five".