208233197 has 2 divisors, whose sum is σ = 208233198. Its totient is φ = 208233196.

The previous prime is 208233149. The next prime is 208233227. The reversal of 208233197 is 791332802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119006281 + 89226916 = 10909^2 + 9446^2 .

It is a cyclic number.

It is not a de Polignac number, because 208233197 - 2¹⁰ = 208232173 is a prime.

It is a super-2 number, since 2×208233197² = 86722128665681618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208233397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104116598 + 104116599.

It is an arithmetic number, because the mean of its divisors is an integer number (104116599).

Almost surely, 2^208233197 is an apocalyptic number.

It is an amenable number.

208233197 is a deficient number, since it is larger than the sum of its proper divisors (1).

208233197 is an equidigital number, since it uses as much as digits as its factorization.

208233197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 208233197 is about 14430.2874884737. The cubic root of 208233197 is about 592.7205557258.

Adding to 208233197 its reverse (791332802), we get a palindrome (999565999).

The spelling of 208233197 in words is "two hundred eight million, two hundred thirty-three thousand, one hundred ninety-seven".