102104556 has 24 divisors (see below), whose sum is σ = 250783680. Its totient is φ = 32243472.

The previous prime is 102104549. The next prime is 102104573. The reversal of 102104556 is 655401201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223686 + ... + 224141.

It is an arithmetic number, because the mean of its divisors is an integer number (10449320).

Almost surely, 2^102104556 is an apocalyptic number.

It is an amenable number.

102104556 is an abundant number, since it is smaller than the sum of its proper divisors (148679124).

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

102104556 is a wasteful number, since it uses less digits than its factorization.

102104556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447853 (or 447851 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 102104556 is about 10104.6799058654. The cubic root of 102104556 is about 467.3924653770.

Adding to 102104556 its reverse (655401201), we get a palindrome (757505757).

The spelling of 102104556 in words is "one hundred two million, one hundred four thousand, five hundred fifty-six".