205950345 has 8 divisors (see below), whose sum is σ = 329520576. Its totient is φ = 109840176.

The previous prime is 205950343. The next prime is 205950383. The reversal of 205950345 is 543059502.

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

It is not a de Polignac number, because 205950345 - 2¹ = 205950343 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (205950343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6864997 + ... + 6865026.

It is an arithmetic number, because the mean of its divisors is an integer number (41190072).

Almost surely, 2^205950345 is an apocalyptic number.

It is an amenable number.

205950345 is a deficient number, since it is larger than the sum of its proper divisors (123570231).

205950345 is a wasteful number, since it uses less digits than its factorization.

205950345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13730031.

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 205950345 is about 14350.9701762633. The cubic root of 205950345 is about 590.5466015590.

The spelling of 205950345 in words is "two hundred five million, nine hundred fifty thousand, three hundred forty-five".