205070 has 8 divisors (see below), whose sum is σ = 369144. Its totient is φ = 82024.

The previous prime is 205069. The next prime is 205081. The reversal of 205070 is 70502.

205070 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 205070.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10244 + ... + 10263.

It is an arithmetic number, because the mean of its divisors is an integer number (46143).

2²⁰⁵⁰⁷⁰ is an apocalyptic number.

205070 is a deficient number, since it is larger than the sum of its proper divisors (164074).

205070 is a wasteful number, since it uses less digits than its factorization.

205070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20514.

The product of its (nonzero) digits is 70, while the sum is 14.

The square root of 205070 is about 452.8465523773. The cubic root of 205070 is about 58.9703959497.

Adding to 205070 its reverse (70502), we get a palindrome (275572).

The spelling of 205070 in words is "two hundred five thousand, seventy".