12631900 has 36 divisors (see below), whose sum is σ = 27888840. Its totient is φ = 4964800.

The previous prime is 12631897. The next prime is 12631919. The reversal of 12631900 is 913621.

It is a super-2 number, since 2×12631900² = 319129795220000, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 4830 + ... + 6970.

It is an arithmetic number, because the mean of its divisors is an integer number (774690).

Almost surely, 2^12631900 is an apocalyptic number.

12631900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12631900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13944420).

12631900 is an abundant number, since it is smaller than the sum of its proper divisors (15256940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12631900 is a wasteful number, since it uses less digits than its factorization.

12631900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2214 (or 2207 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 12631900 is about 3554.1384328695. The cubic root of 12631900 is about 232.8928879491.

It can be divided in two parts, 12631 and 900, that added together give a palindrome (13531).

The spelling of 12631900 in words is "twelve million, six hundred thirty-one thousand, nine hundred".