205934285 has 8 divisors (see below), whose sum is σ = 247527960. Its totient is φ = 164476224.

The previous prime is 205934273. The next prime is 205934291. The reversal of 205934285 is 582439502.

205934285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12974404 + 192959881 = 3602^2 + 13891^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 205934285 - 2¹⁰ = 205933261 is a prime.

It is a super-2 number, since 2×205934285² = 84817859476922450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30530 + ... + 36659.

It is an arithmetic number, because the mean of its divisors is an integer number (30940995).

Almost surely, 2^205934285 is an apocalyptic number.

It is an amenable number.

205934285 is a deficient number, since it is larger than the sum of its proper divisors (41593675).

205934285 is an equidigital number, since it uses as much as digits as its factorization.

205934285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67807.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 205934285 is about 14350.4106213028. The cubic root of 205934285 is about 590.5312508928.

The spelling of 205934285 in words is "two hundred five million, nine hundred thirty-four thousand, two hundred eighty-five".