208221158 has 8 divisors (see below), whose sum is σ = 312820920. Its totient is φ = 103947520.

The previous prime is 208221157. The next prime is 208221161. The reversal of 208221158 is 851122802.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 208221158.

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, 79928 + ... + 82491.

It is an arithmetic number, because the mean of its divisors is an integer number (39102615).

Almost surely, 2^208221158 is an apocalyptic number.

208221158 is a deficient number, since it is larger than the sum of its proper divisors (104599762).

208221158 is a wasteful number, since it uses less digits than its factorization.

208221158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163062.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 208221158 is about 14429.8703389878. The cubic root of 208221158 is about 592.7091327949.

The spelling of 208221158 in words is "two hundred eight million, two hundred twenty-one thousand, one hundred fifty-eight".