12664235 has 8 divisors (see below), whose sum is σ = 16091136. Its totient is φ = 9535360.

The previous prime is 12664217. The next prime is 12664247. The reversal of 12664235 is 53246621.

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

It is not a de Polignac number, because 12664235 - 2¹² = 12660139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12664198 and 12664207.

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 7 ways as a sum of consecutive naturals, for example, 74411 + ... + 74580.

It is an arithmetic number, because the mean of its divisors is an integer number (2011392).

Almost surely, 2^12664235 is an apocalyptic number.

12664235 is a deficient number, since it is larger than the sum of its proper divisors (3426901).

12664235 is a wasteful number, since it uses less digits than its factorization.

12664235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149013.

The product of its digits is 8640, while the sum is 29.

The square root of 12664235 is about 3558.6844479386. The cubic root of 12664235 is about 233.0914375228.

The spelling of 12664235 in words is "twelve million, six hundred sixty-four thousand, two hundred thirty-five".