205022245 has 8 divisors (see below), whose sum is σ = 246191616. Its totient is φ = 163907856.

The previous prime is 205022243. The next prime is 205022273. The reversal of 205022245 is 542220502.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 205022245 - 2¹ = 205022243 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 (205022243) 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 7 ways as a sum of consecutive naturals, for example, 5037 + ... + 20866.

It is an arithmetic number, because the mean of its divisors is an integer number (30773952).

Almost surely, 2^205022245 is an apocalyptic number.

It is an amenable number.

205022245 is a deficient number, since it is larger than the sum of its proper divisors (41169371).

205022245 is a wasteful number, since it uses less digits than its factorization.

205022245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27491.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 205022245 is about 14318.5978713001. The cubic root of 205022245 is about 589.6581808221.

Adding to 205022245 its reverse (542220502), we get a palindrome (747242747).

The spelling of 205022245 in words is "two hundred five million, twenty-two thousand, two hundred forty-five".