102445625 has 20 divisors (see below), whose sum is σ = 134769360. Its totient is φ = 77634000.

The previous prime is 102445619. The next prime is 102445627. The reversal of 102445625 is 526544201.

It is not a de Polignac number, because 102445625 - 2⁶ = 102445561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102445627) 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 in 19 ways as a sum of consecutive naturals, for example, 7562 + ... + 16188.

It is an arithmetic number, because the mean of its divisors is an integer number (6738468).

Almost surely, 2^102445625 is an apocalyptic number.

It is an amenable number.

102445625 is a deficient number, since it is larger than the sum of its proper divisors (32323735).

102445625 is an frugal number, since it uses more digits than its factorization.

102445625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8666 (or 8651 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 102445625 is about 10121.5426195813. The cubic root of 102445625 is about 467.9123112914.

Adding to 102445625 its reverse (526544201), we get a palindrome (628989826).

The spelling of 102445625 in words is "one hundred two million, four hundred forty-five thousand, six hundred twenty-five".