205048943 has 4 divisors (see below), whose sum is σ = 223689768. Its totient is φ = 186408120.

The previous prime is 205048939. The next prime is 205048981. The reversal of 205048943 is 349840502.

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 205048943 - 2² = 205048939 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 (205048903) 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, 9320396 + ... + 9320417.

It is an arithmetic number, because the mean of its divisors is an integer number (55922442).

Almost surely, 2^205048943 is an apocalyptic number.

205048943 is a deficient number, since it is larger than the sum of its proper divisors (18640825).

205048943 is a wasteful number, since it uses less digits than its factorization.

205048943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18640824.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 205048943 is about 14319.5301249727. The cubic root of 205048943 is about 589.6837748104.

The spelling of 205048943 in words is "two hundred five million, forty-eight thousand, nine hundred forty-three".