12204859 has 4 divisors (see below), whose sum is σ = 12847240. Its totient is φ = 11562480.

The previous prime is 12204851. The next prime is 12204883. The reversal of 12204859 is 95840221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95840221 = 107 ⋅895703.

It is a cyclic number.

It is not a de Polignac number, because 12204859 - 2³ = 12204851 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12204859.

It is not an unprimeable number, because it can be changed into a prime (12204851) 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, 321162 + ... + 321199.

It is an arithmetic number, because the mean of its divisors is an integer number (3211810).

Almost surely, 2^12204859 is an apocalyptic number.

12204859 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12204859 is a deficient number, since it is larger than the sum of its proper divisors (642381).

12204859 is an equidigital number, since it uses as much as digits as its factorization.

12204859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642380.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 12204859 is about 3493.5453338979. The cubic root of 12204859 is about 230.2383100203.

The spelling of 12204859 in words is "twelve million, two hundred four thousand, eight hundred fifty-nine".