12634331 has 4 divisors (see below), whose sum is σ = 12667200. Its totient is φ = 12601464.

The previous prime is 12634327. The next prime is 12634333. The reversal of 12634331 is 13343621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12634331 - 2² = 12634327 is a prime.

It is a super-2 number, since 2×12634331² = 319252639635122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12634297 and 12634306.

It is not an unprimeable number, because it can be changed into a prime (12634333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15851 + ... + 16628.

It is an arithmetic number, because the mean of its divisors is an integer number (3166800).

Almost surely, 2^12634331 is an apocalyptic number.

12634331 is a deficient number, since it is larger than the sum of its proper divisors (32869).

12634331 is an equidigital number, since it uses as much as digits as its factorization.

12634331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32868.

The product of its digits is 1296, while the sum is 23.

The square root of 12634331 is about 3554.4804120996. The cubic root of 12634331 is about 232.9078270133.

Adding to 12634331 its reverse (13343621), we get a palindrome (25977952).

The spelling of 12634331 in words is "twelve million, six hundred thirty-four thousand, three hundred thirty-one".