102189208 has 16 divisors (see below), whose sum is σ = 209023560. Its totient is φ = 46449600.

The previous prime is 102189187. The next prime is 102189211. The reversal of 102189208 is 802981201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 102189208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 580533 + ... + 580708.

Almost surely, 2^102189208 is an apocalyptic number.

It is an amenable number.

102189208 is an abundant number, since it is smaller than the sum of its proper divisors (106834352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102189208 is a wasteful number, since it uses less digits than its factorization.

102189208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161258 (or 1161254 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 102189208 is about 10108.8677902127. The cubic root of 102189208 is about 467.5215969891.

The spelling of 102189208 in words is "one hundred two million, one hundred eighty-nine thousand, two hundred eight".