208855106 has 12 divisors (see below), whose sum is σ = 330640182. Its totient is φ = 98931024.

The previous prime is 208855069. The next prime is 208855109. The reversal of 208855106 is 601558802.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 132135025 + 76720081 = 11495^2 + 8759^2 .

It is not an unprimeable number, because it can be changed into a prime (208855109) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 143915 + ... + 145358.

Almost surely, 2^208855106 is an apocalyptic number.

208855106 is a deficient number, since it is larger than the sum of its proper divisors (121785076).

208855106 is a wasteful number, since it uses less digits than its factorization.

208855106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289313 (or 289294 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 208855106 is about 14451.8201621803. The cubic root of 208855106 is about 593.3100420797.

The spelling of 208855106 in words is "two hundred eight million, eight hundred fifty-five thousand, one hundred six".