205231235 has 8 divisors (see below), whose sum is σ = 268666416. Its totient is φ = 149259040.

The previous prime is 205231223. The next prime is 205231237. The reversal of 205231235 is 532132502.

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

It is not a de Polignac number, because 205231235 - 2⁸ = 205230979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 205231235.

It is not an unprimeable number, because it can be changed into a prime (205231237) 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, 1865684 + ... + 1865793.

It is an arithmetic number, because the mean of its divisors is an integer number (33583302).

Almost surely, 2^205231235 is an apocalyptic number.

205231235 is a deficient number, since it is larger than the sum of its proper divisors (63435181).

205231235 is a wasteful number, since it uses less digits than its factorization.

205231235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3731493.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 205231235 is about 14325.8938639095. The cubic root of 205231235 is about 589.8584693556.

Adding to 205231235 its reverse (532132502), we get a palindrome (737363737).

The spelling of 205231235 in words is "two hundred five million, two hundred thirty-one thousand, two hundred thirty-five".