205314231 has 4 divisors (see below), whose sum is σ = 273752312. Its totient is φ = 136876152.

The previous prime is 205314143. The next prime is 205314269. The reversal of 205314231 is 132413502.

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

It is not a de Polignac number, because 205314231 - 2¹⁴ = 205297847 is a prime.

It is a super-2 number, since 2×205314231² = 84307866902242722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 205314198 and 205314207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205314281) 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, 34219036 + ... + 34219041.

It is an arithmetic number, because the mean of its divisors is an integer number (68438078).

Almost surely, 2^205314231 is an apocalyptic number.

205314231 is a deficient number, since it is larger than the sum of its proper divisors (68438081).

205314231 is an equidigital number, since it uses as much as digits as its factorization.

205314231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68438080.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 205314231 is about 14328.7902839005. The cubic root of 205314231 is about 589.9379720293.

Adding to 205314231 its reverse (132413502), we get a palindrome (337727733).

The spelling of 205314231 in words is "two hundred five million, three hundred fourteen thousand, two hundred thirty-one".