12164859 has 12 divisors (see below), whose sum is σ = 20081776. Its totient is φ = 6951312.

The previous prime is 12164857. The next prime is 12164881. The reversal of 12164859 is 95846121.

12164859 is a `hidden beast` number, since 1 + 2 + 1 + 648 + 5 + 9 = 666.

It is not a de Polignac number, because 12164859 - 2¹ = 12164857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12164851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96484 + ... + 96609.

Almost surely, 2^12164859 is an apocalyptic number.

12164859 is a deficient number, since it is larger than the sum of its proper divisors (7916917).

12164859 is a wasteful number, since it uses less digits than its factorization.

12164859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193106 (or 193103 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 12164859 is about 3487.8157921542. The cubic root of 12164859 is about 229.9865083453.

It can be divided in two parts, 121 and 64859, that added together give a triangular number (64980 = T₃₆₀).

The spelling of 12164859 in words is "twelve million, one hundred sixty-four thousand, eight hundred fifty-nine".