208185085 has 16 divisors (see below), whose sum is σ = 258334272. Its totient is φ = 160950400.

The previous prime is 208185073. The next prime is 208185143. The reversal of 208185085 is 580581802.

It is not a de Polignac number, because 208185085 - 2⁵ = 208185053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17190 + ... + 26680.

It is an arithmetic number, because the mean of its divisors is an integer number (16145892).

Almost surely, 2^208185085 is an apocalyptic number.

It is an amenable number.

208185085 is a deficient number, since it is larger than the sum of its proper divisors (50149187).

208185085 is a wasteful number, since it uses less digits than its factorization.

208185085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9644.

The product of its (nonzero) digits is 25600, while the sum is 37.

The square root of 208185085 is about 14428.6203429157. The cubic root of 208185085 is about 592.6749031140.

The spelling of 208185085 in words is "two hundred eight million, one hundred eighty-five thousand, eighty-five".