12821164 has 6 divisors (see below), whose sum is σ = 22437044. Its totient is φ = 6410580.

The previous prime is 12821153. The next prime is 12821227. The reversal of 12821164 is 46112821.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1602642 + ... + 1602649.

Almost surely, 2^12821164 is an apocalyptic number.

It is an amenable number.

12821164 is a deficient number, since it is larger than the sum of its proper divisors (9615880).

12821164 is a wasteful number, since it uses less digits than its factorization.

12821164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3205295 (or 3205293 counting only the distinct ones).

The product of its digits is 768, while the sum is 25.

The square root of 12821164 is about 3580.6653013092. The cubic root of 12821164 is about 234.0502728813.

Adding to 12821164 its reverse (46112821), we get a palindrome (58933985).

The spelling of 12821164 in words is "twelve million, eight hundred twenty-one thousand, one hundred sixty-four".