205034231 has 4 divisors (see below), whose sum is σ = 205125264. Its totient is φ = 204943200.

The previous prime is 205034227. The next prime is 205034233. The reversal of 205034231 is 132430502.

It is a happy number.

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 205034231 - 2² = 205034227 is a prime.

It is a super-2 number, since 2×205034231² = 84078071763522722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205034233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42050 + ... + 46671.

It is an arithmetic number, because the mean of its divisors is an integer number (51281316).

Almost surely, 2^205034231 is an apocalyptic number.

205034231 is a deficient number, since it is larger than the sum of its proper divisors (91033).

205034231 is an equidigital number, since it uses as much as digits as its factorization.

205034231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91032.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 205034231 is about 14319.0164117512. The cubic root of 205034231 is about 589.6696714536.

Adding to 205034231 its reverse (132430502), we get a palindrome (337464733).

The spelling of 205034231 in words is "two hundred five million, thirty-four thousand, two hundred thirty-one".