205081002 has 24 divisors (see below), whose sum is σ = 507819936. Its totient is φ = 58594536.

The previous prime is 205081001. The next prime is 205081007. The reversal of 205081002 is 200180502.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (205081001) 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 11 ways as a sum of consecutive naturals, for example, 813688 + ... + 813939.

It is an arithmetic number, because the mean of its divisors is an integer number (21159164).

Almost surely, 2^205081002 is an apocalyptic number.

205081002 is an abundant number, since it is smaller than the sum of its proper divisors (302738934).

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

205081002 is a wasteful number, since it uses less digits than its factorization.

205081002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627642 (or 1627639 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 205081002 is about 14320.6494964439. The cubic root of 205081002 is about 589.7145051761.

The spelling of 205081002 in words is "two hundred five million, eighty-one thousand, two".