208380533 has 2 divisors, whose sum is σ = 208380534. Its totient is φ = 208380532.

The previous prime is 208380517. The next prime is 208380583. The reversal of 208380533 is 335083802.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208022929 + 357604 = 14423^2 + 598^2 .

It is a cyclic number.

It is not a de Polignac number, because 208380533 - 2⁴ = 208380517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 208380533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208380503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104190266 + 104190267.

It is an arithmetic number, because the mean of its divisors is an integer number (104190267).

Almost surely, 2^208380533 is an apocalyptic number.

It is an amenable number.

208380533 is a deficient number, since it is larger than the sum of its proper divisors (1).

208380533 is an equidigital number, since it uses as much as digits as its factorization.

208380533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 208380533 is about 14435.3916815582. The cubic root of 208380533 is about 592.8603164821.

The spelling of 208380533 in words is "two hundred eight million, three hundred eighty thousand, five hundred thirty-three".