100102208 has 14 divisors (see below), whose sum is σ = 198640446. Its totient is φ = 50051072.

The previous prime is 100102207. The next prime is 100102217. The reversal of 100102208 is 802201001.

It can be written as a sum of positive squares in only one way, i.e., 99840064 + 262144 = 9992^2 + 512^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100102192 and 100102201.

It is not an unprimeable number, because it can be changed into a prime (100102207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 781985 + ... + 782112.

Almost surely, 2^100102208 is an apocalyptic number.

It is an amenable number.

100102208 is a deficient number, since it is larger than the sum of its proper divisors (98538238).

100102208 is an equidigital number, since it uses as much as digits as its factorization.

100102208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564109 (or 1564099 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 100102208 is about 10005.1090948575. The cubic root of 100102208 is about 464.3169653532.

Adding to 100102208 its reverse (802201001), we get a palindrome (902303209).

The spelling of 100102208 in words is "one hundred million, one hundred two thousand, two hundred eight".