205238073 has 8 divisors (see below), whose sum is σ = 282478336. Its totient is φ = 132411600.

The previous prime is 205238071. The next prime is 205238081. The reversal of 205238073 is 370832502.

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

It is not a de Polignac number, because 205238073 - 2¹ = 205238071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 205238073.

It is not an unprimeable number, because it can be changed into a prime (205238071) 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, 1103338 + ... + 1103523.

It is an arithmetic number, because the mean of its divisors is an integer number (35309792).

Almost surely, 2^205238073 is an apocalyptic number.

It is an amenable number.

205238073 is a deficient number, since it is larger than the sum of its proper divisors (77240263).

205238073 is a wasteful number, since it uses less digits than its factorization.

205238073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2206895.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 205238073 is about 14326.1325206770. The cubic root of 205238073 is about 589.8650203523.

The spelling of 205238073 in words is "two hundred five million, two hundred thirty-eight thousand, seventy-three".