205895012 has 12 divisors (see below), whose sum is σ = 372741180. Its totient is φ = 99397536.

The previous prime is 205895009. The next prime is 205895017. The reversal of 205895012 is 210598502.

It can be written as a sum of positive squares in 2 ways, for example, as 37258816 + 168636196 = 6104^2 + 12986^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 205895012.

It is not an unprimeable number, because it can be changed into a prime (205895017) 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 3 ways as a sum of consecutive naturals, for example, 887363 + ... + 887594.

It is an arithmetic number, because the mean of its divisors is an integer number (31061765).

Almost surely, 2^205895012 is an apocalyptic number.

It is an amenable number.

205895012 is a deficient number, since it is larger than the sum of its proper divisors (166846168).

205895012 is a wasteful number, since it uses less digits than its factorization.

205895012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774990 (or 1774988 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 205895012 is about 14349.0421980005. The cubic root of 205895012 is about 590.4937091300.

The spelling of 205895012 in words is "two hundred five million, eight hundred ninety-five thousand, twelve".