208221159 has 4 divisors (see below), whose sum is σ = 277628216. Its totient is φ = 138814104.

The previous prime is 208221157. The next prime is 208221161. The reversal of 208221159 is 951122802.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (208221157) and next prime (208221161).

It is not a de Polignac number, because 208221159 - 2¹ = 208221157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208221157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34703524 + ... + 34703529.

It is an arithmetic number, because the mean of its divisors is an integer number (69407054).

Almost surely, 2^208221159 is an apocalyptic number.

208221159 is a deficient number, since it is larger than the sum of its proper divisors (69407057).

208221159 is an equidigital number, since it uses as much as digits as its factorization.

208221159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69407056.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 208221159 is about 14429.8703736381. The cubic root of 208221159 is about 592.7091337437.

The spelling of 208221159 in words is "two hundred eight million, two hundred twenty-one thousand, one hundred fifty-nine".