102305664 has 48 divisors (see below), whose sum is σ = 294398520. Its totient is φ = 34101504.

The previous prime is 102305653. The next prime is 102305669. The reversal of 102305664 is 466503201.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102305669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43252 + ... + 45555.

Almost surely, 2^102305664 is an apocalyptic number.

It is an amenable number.

102305664 is an abundant number, since it is smaller than the sum of its proper divisors (192092856).

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

102305664 is an equidigital number, since it uses as much as digits as its factorization.

102305664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88827 (or 88812 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 102305664 is about 10114.6262412409. The cubic root of 102305664 is about 467.6991272356.

Adding to 102305664 its reverse (466503201), we get a palindrome (568808865).

The spelling of 102305664 in words is "one hundred two million, three hundred five thousand, six hundred sixty-four".