205608145 has 8 divisors (see below), whose sum is σ = 247006080. Its totient is φ = 164302320.

The previous prime is 205608131. The next prime is 205608157. The reversal of 205608145 is 541806502.

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

It is not a de Polignac number, because 205608145 - 2¹¹ = 205606097 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18015 + ... + 27124.

It is an arithmetic number, because the mean of its divisors is an integer number (30875760).

Almost surely, 2^205608145 is an apocalyptic number.

It is an amenable number.

205608145 is a deficient number, since it is larger than the sum of its proper divisors (41397935).

205608145 is an equidigital number, since it uses as much as digits as its factorization.

205608145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46055.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 205608145 is about 14339.0426807371. The cubic root of 205608145 is about 590.2193429402.

The spelling of 205608145 in words is "two hundred five million, six hundred eight thousand, one hundred forty-five".