208955011 has 2 divisors, whose sum is σ = 208955012. Its totient is φ = 208955010.

The previous prime is 208955009. The next prime is 208955029. The reversal of 208955011 is 110559802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 208955011 - 2¹ = 208955009 is a prime.

Together with 208955009, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (208955051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104477505 + 104477506.

It is an arithmetic number, because the mean of its divisors is an integer number (104477506).

Almost surely, 2^208955011 is an apocalyptic number.

208955011 is a deficient number, since it is larger than the sum of its proper divisors (1).

208955011 is an equidigital number, since it uses as much as digits as its factorization.

208955011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 31.

The square root of 208955011 is about 14455.2762339569. The cubic root of 208955011 is about 593.4046294903.

The spelling of 208955011 in words is "two hundred eight million, nine hundred fifty-five thousand, eleven".