205705214 has 32 divisors (see below), whose sum is σ = 366073344. Its totient is φ = 85459680.

The previous prime is 205705147. The next prime is 205705259. The reversal of 205705214 is 412507502.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 25967 + ... + 32949.

It is an arithmetic number, because the mean of its divisors is an integer number (11439792).

Almost surely, 2^205705214 is an apocalyptic number.

205705214 is a deficient number, since it is larger than the sum of its proper divisors (160368130).

205705214 is a wasteful number, since it uses less digits than its factorization.

205705214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7112.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 205705214 is about 14342.4270609963. The cubic root of 205705214 is about 590.3122105124.

The spelling of 205705214 in words is "two hundred five million, seven hundred five thousand, two hundred fourteen".