2205124289 has 4 divisors (see below), whose sum is σ = 2213509056. Its totient is φ = 2196739524.

The previous prime is 2205124277. The next prime is 2205124291. The reversal of 2205124289 is 9824215022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2205124289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2205124489) 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, 4191989 + ... + 4192514.

It is an arithmetic number, because the mean of its divisors is an integer number (553377264).

Almost surely, 2^2205124289 is an apocalyptic number.

It is an amenable number.

2205124289 is a deficient number, since it is larger than the sum of its proper divisors (8384767).

2205124289 is an equidigital number, since it uses as much as digits as its factorization.

2205124289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8384766.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 2205124289 is about 46958.7509310033. The cubic root of 2205124289 is about 1301.6004527120.

The spelling of 2205124289 in words is "two billion, two hundred five million, one hundred twenty-four thousand, two hundred eighty-nine".