205105701 has 8 divisors (see below), whose sum is σ = 274609984. Its totient is φ = 136169280.

The previous prime is 205105673. The next prime is 205105709. The reversal of 205105701 is 107501502.

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

It is not a de Polignac number, because 205105701 - 2⁹ = 205105189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205105709) 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 7 ways as a sum of consecutive naturals, for example, 141121 + ... + 142566.

It is an arithmetic number, because the mean of its divisors is an integer number (34326248).

Almost surely, 2^205105701 is an apocalyptic number.

It is an amenable number.

205105701 is a deficient number, since it is larger than the sum of its proper divisors (69504283).

205105701 is a wasteful number, since it uses less digits than its factorization.

205105701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283931.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 205105701 is about 14321.5118266194. The cubic root of 205105701 is about 589.7381783812.

The spelling of 205105701 in words is "two hundred five million, one hundred five thousand, seven hundred one".