102609228 has 12 divisors (see below), whose sum is σ = 239421560. Its totient is φ = 34203072.

The previous prime is 102609217. The next prime is 102609277. The reversal of 102609228 is 822906201.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 102609195 and 102609204.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 4275373 + ... + 4275396.

Almost surely, 2^102609228 is an apocalyptic number.

It is an amenable number.

102609228 is an abundant number, since it is smaller than the sum of its proper divisors (136812332).

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

102609228 is a wasteful number, since it uses less digits than its factorization.

102609228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8550776 (or 8550774 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 102609228 is about 10129.6213157255. The cubic root of 102609228 is about 468.1612600827.

The spelling of 102609228 in words is "one hundred two million, six hundred nine thousand, two hundred twenty-eight".