128102 has 12 divisors (see below), whose sum is σ = 208620. Its totient is φ = 58968.

The previous prime is 128099. The next prime is 128111. The reversal of 128102 is 201821.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 128102.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 149 + ... + 527.

It is an arithmetic number, because the mean of its divisors is an integer number (17385).

2¹²⁸¹⁰² is an apocalyptic number.

128102 is a deficient number, since it is larger than the sum of its proper divisors (80518).

128102 is a wasteful number, since it uses less digits than its factorization.

128102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 128102 is about 357.9133973463. The cubic root of 128102 is about 50.4102251027.

Adding to 128102 its reverse (201821), we get a palindrome (329923).

The spelling of 128102 in words is "one hundred twenty-eight thousand, one hundred two".