12634138 has 8 divisors (see below), whose sum is σ = 20674080. Its totient is φ = 5742780.

The previous prime is 12634133. The next prime is 12634147. The reversal of 12634138 is 83143621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12634133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287118 + ... + 287161.

It is an arithmetic number, because the mean of its divisors is an integer number (2584260).

Almost surely, 2^12634138 is an apocalyptic number.

12634138 is a deficient number, since it is larger than the sum of its proper divisors (8039942).

12634138 is a wasteful number, since it uses less digits than its factorization.

12634138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574292.

The product of its digits is 3456, while the sum is 28.

The square root of 12634138 is about 3554.4532631616. The cubic root of 12634138 is about 232.9066410532.

Adding to 12634138 its reverse (83143621), we get a palindrome (95777759).

The spelling of 12634138 in words is "twelve million, six hundred thirty-four thousand, one hundred thirty-eight".