102128679 has 24 divisors (see below), whose sum is σ = 150302880. Its totient is φ = 66811392.

The previous prime is 102128669. The next prime is 102128687. The reversal of 102128679 is 976821201.

It is not a de Polignac number, because 102128679 - 2¹¹ = 102126631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102128669) 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 23 ways as a sum of consecutive naturals, for example, 235647 + ... + 236079.

It is an arithmetic number, because the mean of its divisors is an integer number (6262620).

Almost surely, 2^102128679 is an apocalyptic number.

102128679 is a deficient number, since it is larger than the sum of its proper divisors (48174201).

102128679 is a wasteful number, since it uses less digits than its factorization.

102128679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 102128679 is about 10105.8734902036. The cubic root of 102128679 is about 467.4292708539.

The spelling of 102128679 in words is "one hundred two million, one hundred twenty-eight thousand, six hundred seventy-nine".