205042535 has 4 divisors (see below), whose sum is σ = 246051048. Its totient is φ = 164034024.

The previous prime is 205042489. The next prime is 205042543. The reversal of 205042535 is 535240502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 205042535 - 2²² = 200848231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20504249 + ... + 20504258.

It is an arithmetic number, because the mean of its divisors is an integer number (61512762).

Almost surely, 2^205042535 is an apocalyptic number.

205042535 is a deficient number, since it is larger than the sum of its proper divisors (41008513).

205042535 is an equidigital number, since it uses as much as digits as its factorization.

205042535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41008512.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 205042535 is about 14319.3063728660. The cubic root of 205042535 is about 589.6776319957.

The spelling of 205042535 in words is "two hundred five million, forty-two thousand, five hundred thirty-five".