208913249 has 2 divisors, whose sum is σ = 208913250. Its totient is φ = 208913248.

The previous prime is 208913239. The next prime is 208913267. The reversal of 208913249 is 942319802.

208913249 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., 172528225 + 36385024 = 13135^2 + 6032^2 .

It is a cyclic number.

It is not a de Polignac number, because 208913249 - 2⁴ = 208913233 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (208913239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104456624 + 104456625.

It is an arithmetic number, because the mean of its divisors is an integer number (104456625).

Almost surely, 2^208913249 is an apocalyptic number.

It is an amenable number.

208913249 is a deficient number, since it is larger than the sum of its proper divisors (1).

208913249 is an equidigital number, since it uses as much as digits as its factorization.

208913249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 208913249 is about 14453.8316373203. The cubic root of 208913249 is about 593.3650940018.

The spelling of 208913249 in words is "two hundred eight million, nine hundred thirteen thousand, two hundred forty-nine".