205125112 has 8 divisors (see below), whose sum is σ = 384609600. Its totient is φ = 102562552.

The previous prime is 205125103. The next prime is 205125113. The reversal of 205125112 is 211521502.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 205125112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205125113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12820312 + ... + 12820327.

It is an arithmetic number, because the mean of its divisors is an integer number (48076200).

Almost surely, 2^205125112 is an apocalyptic number.

It is an amenable number.

205125112 is a deficient number, since it is larger than the sum of its proper divisors (179484488).

205125112 is a wasteful number, since it uses less digits than its factorization.

205125112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25640645 (or 25640641 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 205125112 is about 14322.1894974197. The cubic root of 205125112 is about 589.7567818730.

Adding to 205125112 its reverse (211521502), we get a palindrome (416646614).

The spelling of 205125112 in words is "two hundred five million, one hundred twenty-five thousand, one hundred twelve".