12208481 has 4 divisors (see below), whose sum is σ = 12297732. Its totient is φ = 12119232.

The previous prime is 12208459. The next prime is 12208489. The reversal of 12208481 is 18480221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6250000 + 5958481 = 2500^2 + 2441^2 .

It is a cyclic number.

It is not a de Polignac number, because 12208481 - 2¹⁴ = 12192097 is a prime.

It is a super-2 number, since 2×12208481² = 298094016654722, which contains 22 as substring.

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 12208481.

It is not an unprimeable number, because it can be changed into a prime (12208489) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 44420 + ... + 44693.

It is an arithmetic number, because the mean of its divisors is an integer number (3074433).

Almost surely, 2^12208481 is an apocalyptic number.

It is an amenable number.

12208481 is a deficient number, since it is larger than the sum of its proper divisors (89251).

12208481 is an equidigital number, since it uses as much as digits as its factorization.

12208481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89250.

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 12208481 is about 3494.0636800150. The cubic root of 12208481 is about 230.2610834823.

The spelling of 12208481 in words is "twelve million, two hundred eight thousand, four hundred eighty-one".