102225444 has 12 divisors (see below), whose sum is σ = 238526064. Its totient is φ = 34075144.

The previous prime is 102225439. The next prime is 102225481. The reversal of 102225444 is 444522201.

It is a happy number.

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

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, 4259382 + ... + 4259405.

It is an arithmetic number, because the mean of its divisors is an integer number (19877172).

Almost surely, 2^102225444 is an apocalyptic number.

It is an amenable number.

102225444 is an abundant number, since it is smaller than the sum of its proper divisors (136300620).

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

102225444 is a wasteful number, since it uses less digits than its factorization.

102225444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8518794 (or 8518792 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 102225444 is about 10110.6599191151. The cubic root of 102225444 is about 467.5768510643.

Adding to 102225444 its reverse (444522201), we get a palindrome (546747645).

The spelling of 102225444 in words is "one hundred two million, two hundred twenty-five thousand, four hundred forty-four".