128098 has 8 divisors (see below), whose sum is σ = 202320. Its totient is φ = 60660.

The previous prime is 128053. The next prime is 128099. The reversal of 128098 is 890821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (128099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1648 + ... + 1723.

It is an arithmetic number, because the mean of its divisors is an integer number (25290).

2¹²⁸⁰⁹⁸ is an apocalyptic number.

128098 is a deficient number, since it is larger than the sum of its proper divisors (74222).

128098 is a wasteful number, since it uses less digits than its factorization.

128098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3392.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 128098 is about 357.9078093588. The cubic root of 128098 is about 50.4097004088.

It can be divided in two parts, 1280 and 98, that added together give a triangular number (1378 = T₅₂).

The spelling of 128098 in words is "one hundred twenty-eight thousand, ninety-eight".