205411343 has 4 divisors (see below), whose sum is σ = 205447440. Its totient is φ = 205375248.

The previous prime is 205411333. The next prime is 205411399. The reversal of 205411343 is 343114502.

205411343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 205411343 - 2¹² = 205407247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205411313) 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, 7430 + ... + 21587.

It is an arithmetic number, because the mean of its divisors is an integer number (51361860).

Almost surely, 2^205411343 is an apocalyptic number.

205411343 is a deficient number, since it is larger than the sum of its proper divisors (36097).

205411343 is an equidigital number, since it uses as much as digits as its factorization.

205411343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36096.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 205411343 is about 14332.1785852675. The cubic root of 205411343 is about 590.0309693597.

Adding to 205411343 its reverse (343114502), we get a palindrome (548525845).

The spelling of 205411343 in words is "two hundred five million, four hundred eleven thousand, three hundred forty-three".