205345122 has 16 divisors (see below), whose sum is σ = 432305760. Its totient is φ = 64845792.

The previous prime is 205345121. The next prime is 205345163. The reversal of 205345122 is 221543502.

It is a junction number, because it is equal to n+sod(n) for n = 205345092 and 205345101.

It is not an unprimeable number, because it can be changed into a prime (205345121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 900523 + ... + 900750.

It is an arithmetic number, because the mean of its divisors is an integer number (27019110).

Almost surely, 2^205345122 is an apocalyptic number.

205345122 is an abundant number, since it is smaller than the sum of its proper divisors (226960638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205345122 is a wasteful number, since it uses less digits than its factorization.

205345122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801297.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 205345122 is about 14329.8681780399. The cubic root of 205345122 is about 589.9675573466.

Adding to 205345122 its reverse (221543502), we get a palindrome (426888624).

The spelling of 205345122 in words is "two hundred five million, three hundred forty-five thousand, one hundred twenty-two".