12208559 has 4 divisors (see below), whose sum is σ = 13318440. Its totient is φ = 11098680.

The previous prime is 12208549. The next prime is 12208571. The reversal of 12208559 is 95580221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95580221 = 11 ⋅8689111.

It is a cyclic number.

It is not a de Polignac number, because 12208559 - 2⁴ = 12208543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12208519) 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, 554924 + ... + 554945.

It is an arithmetic number, because the mean of its divisors is an integer number (3329610).

Almost surely, 2^12208559 is an apocalyptic number.

12208559 is a deficient number, since it is larger than the sum of its proper divisors (1109881).

12208559 is a wasteful number, since it uses less digits than its factorization.

12208559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109880.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 12208559 is about 3494.0748417857. The cubic root of 12208559 is about 230.2615738607.

It can be divided in two parts, 1220 and 8559, that added together give a palindrome (9779).

The spelling of 12208559 in words is "twelve million, two hundred eight thousand, five hundred fifty-nine".