205302239 has 8 divisors (see below), whose sum is σ = 216342000. Its totient is φ = 194285952.

The previous prime is 205302221. The next prime is 205302247. The reversal of 205302239 is 932203502.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205302239 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 (205302269) 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 7 ways as a sum of consecutive naturals, for example, 13817 + ... + 24525.

It is an arithmetic number, because the mean of its divisors is an integer number (27042750).

Almost surely, 2^205302239 is an apocalyptic number.

205302239 is a deficient number, since it is larger than the sum of its proper divisors (11039761).

205302239 is a wasteful number, since it uses less digits than its factorization.

205302239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11737.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 205302239 is about 14328.3718195753. The cubic root of 205302239 is about 589.9264861005.

The spelling of 205302239 in words is "two hundred five million, three hundred two thousand, two hundred thirty-nine".