205125243 has 8 divisors (see below), whose sum is σ = 276208656. Its totient is φ = 135396000.

The previous prime is 205125209. The next prime is 205125253. The reversal of 205125243 is 342521502.

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

It is not a de Polignac number, because 205125243 - 2¹³ = 205117051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205125203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338188 + ... + 338793.

It is an arithmetic number, because the mean of its divisors is an integer number (34526082).

Almost surely, 2^205125243 is an apocalyptic number.

205125243 is a deficient number, since it is larger than the sum of its proper divisors (71083413).

205125243 is a wasteful number, since it uses less digits than its factorization.

205125243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677085.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 205125243 is about 14322.1940707421. The cubic root of 205125243 is about 589.7569074193.

Adding to 205125243 its reverse (342521502), we get a palindrome (547646745).

The spelling of 205125243 in words is "two hundred five million, one hundred twenty-five thousand, two hundred forty-three".