205452343 has 4 divisors (see below), whose sum is σ = 205526160. Its totient is φ = 205378528.

The previous prime is 205452341. The next prime is 205452347. The reversal of 205452343 is 343254502.

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 205452343 - 2¹ = 205452341 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 (205452341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32563 + ... + 38356.

It is an arithmetic number, because the mean of its divisors is an integer number (51381540).

Almost surely, 2^205452343 is an apocalyptic number.

205452343 is a deficient number, since it is larger than the sum of its proper divisors (73817).

205452343 is an equidigital number, since it uses as much as digits as its factorization.

205452343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73816.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 205452343 is about 14333.6088616929. The cubic root of 205452343 is about 590.0702233757.

The spelling of 205452343 in words is "two hundred five million, four hundred fifty-two thousand, three hundred forty-three".