205234849 has 8 divisors (see below), whose sum is σ = 212959232. Its totient is φ = 197579520.

The previous prime is 205234837. The next prime is 205234859. The reversal of 205234849 is 948432502.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 205234849 - 2²⁵ = 171680417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205234859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11169 + ... + 23134.

It is an arithmetic number, because the mean of its divisors is an integer number (26619904).

Almost surely, 2^205234849 is an apocalyptic number.

It is an amenable number.

205234849 is a deficient number, since it is larger than the sum of its proper divisors (7724383).

205234849 is a wasteful number, since it uses less digits than its factorization.

205234849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34527.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 205234849 is about 14326.0199985900. The cubic root of 205234849 is about 589.8619316876.

The spelling of 205234849 in words is "two hundred five million, two hundred thirty-four thousand, eight hundred forty-nine".