102128768 has 32 divisors (see below), whose sum is σ = 232527360. Its totient is φ = 43769088.

The previous prime is 102128753. The next prime is 102128783. The reversal of 102128768 is 867821201.

It is an interprime number because it is at equal distance from previous prime (102128753) and next prime (102128783).

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56096 + ... + 57887.

It is an arithmetic number, because the mean of its divisors is an integer number (7266480).

Almost surely, 2^102128768 is an apocalyptic number.

It is an amenable number.

102128768 is an abundant number, since it is smaller than the sum of its proper divisors (130398592).

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

102128768 is an equidigital number, since it uses as much as digits as its factorization.

102128768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114004 (or 113992 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 102128768 is about 10105.8778935825. The cubic root of 102128768 is about 467.4294066342.

Adding to 102128768 its reverse (867821201), we get a palindrome (969949969).

The spelling of 102128768 in words is "one hundred two million, one hundred twenty-eight thousand, seven hundred sixty-eight".