208140833 has 2 divisors, whose sum is σ = 208140834. Its totient is φ = 208140832.

The previous prime is 208140817. The next prime is 208140893. The reversal of 208140833 is 338041802.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199713424 + 8427409 = 14132^2 + 2903^2 .

It is a cyclic number.

It is not a de Polignac number, because 208140833 - 2⁴ = 208140817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 208140796 and 208140805.

It is not a weakly prime, because it can be changed into another prime (208140893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104070416 + 104070417.

It is an arithmetic number, because the mean of its divisors is an integer number (104070417).

Almost surely, 2^208140833 is an apocalyptic number.

It is an amenable number.

208140833 is a deficient number, since it is larger than the sum of its proper divisors (1).

208140833 is an equidigital number, since it uses as much as digits as its factorization.

208140833 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 208140833 is about 14427.0867814677. The cubic root of 208140833 is about 592.6329069766.

The spelling of 208140833 in words is "two hundred eight million, one hundred forty thousand, eight hundred thirty-three".