208225243 has 2 divisors, whose sum is σ = 208225244. Its totient is φ = 208225242.

The previous prime is 208225229. The next prime is 208225271. The reversal of 208225243 is 342522802.

It is a happy number.

It is an a-pointer prime, because the next prime (208225271) can be obtained adding 208225243 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-208225243 is a prime.

It is not a weakly prime, because it can be changed into another prime (208226243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104112621 + 104112622.

It is an arithmetic number, because the mean of its divisors is an integer number (104112622).

Almost surely, 2^208225243 is an apocalyptic number.

208225243 is a deficient number, since it is larger than the sum of its proper divisors (1).

208225243 is an equidigital number, since it uses as much as digits as its factorization.

208225243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 208225243 is about 14430.0118849570. The cubic root of 208225243 is about 592.7130088035.

The spelling of 208225243 in words is "two hundred eight million, two hundred twenty-five thousand, two hundred forty-three".