12631229 has 12 divisors (see below), whose sum is σ = 14124672. Its totient is φ = 11278800.

The previous prime is 12631193. The next prime is 12631237. The reversal of 12631229 is 92213621.

12631229 = 185² + 186² + ... + 353².

It is not a de Polignac number, because 12631229 - 2¹² = 12627133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12631198 and 12631207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12631279) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 4034 + ... + 6444.

It is an arithmetic number, because the mean of its divisors is an integer number (1177056).

Almost surely, 2^12631229 is an apocalyptic number.

It is an amenable number.

12631229 is a deficient number, since it is larger than the sum of its proper divisors (1493443).

12631229 is a wasteful number, since it uses less digits than its factorization.

12631229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2468 (or 2455 counting only the distinct ones).

The product of its digits is 1296, while the sum is 26.

The square root of 12631229 is about 3554.0440346175. The cubic root of 12631229 is about 232.8887641595. Note that the first 3 decimals are identical.

The spelling of 12631229 in words is "twelve million, six hundred thirty-one thousand, two hundred twenty-nine".