208185073 has 2 divisors, whose sum is σ = 208185074. Its totient is φ = 208185072.

The previous prime is 208185053. The next prime is 208185143. The reversal of 208185073 is 370581802.

208185073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 183115024 + 25070049 = 13532^2 + 5007^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-208185073 is a prime.

It is not a weakly prime, because it can be changed into another prime (208185053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104092536 + 104092537.

It is an arithmetic number, because the mean of its divisors is an integer number (104092537).

Almost surely, 2^208185073 is an apocalyptic number.

It is an amenable number.

208185073 is a deficient number, since it is larger than the sum of its proper divisors (1).

208185073 is an equidigital number, since it uses as much as digits as its factorization.

208185073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 208185073 is about 14428.6199270755. The cubic root of 208185073 is about 592.6748917266.

The spelling of 208185073 in words is "two hundred eight million, one hundred eighty-five thousand, seventy-three".