12634 has 4 divisors (see below), whose sum is σ = 18954. Its totient is φ = 6316.

The previous prime is 12619. The next prime is 12637. The reversal of 12634 is 43621.

12634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43621 = 181 ⋅241.

It can be written as a sum of positive squares in only one way, i.e., 10609 + 2025 = 103^2 + 45^2 .

It is a d-powerful number, because it can be written as 1 + 2⁵ + 6⁵ + 3⁶ + 4⁶ .

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (12637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3157 + ... + 3160.

2¹²⁶³⁴ is an apocalyptic number.

12634 is a deficient number, since it is larger than the sum of its proper divisors (6320).

12634 is an equidigital number, since it uses as much as digits as its factorization.

12634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6319.

The product of its digits is 144, while the sum is 16.

The square root of 12634 is about 112.4010676106. The cubic root of 12634 is about 23.2905793054.

It can be divided in two parts, 12 and 634, that added together give a palindrome (646).

The spelling of 12634 in words is "twelve thousand, six hundred thirty-four".