128146 has 8 divisors (see below), whose sum is σ = 203580. Its totient is φ = 60288.

The previous prime is 128119. The next prime is 128147. The reversal of 128146 is 641821.

It can be written as a sum of positive squares in 2 ways, for example, as 114921 + 13225 = 339^2 + 115^2 .

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 (128147) 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, 1851 + ... + 1918.

2¹²⁸¹⁴⁶ is an apocalyptic number.

128146 is a deficient number, since it is larger than the sum of its proper divisors (75434).

128146 is a wasteful number, since it uses less digits than its factorization.

128146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3788.

The product of its digits is 384, while the sum is 22.

The square root of 128146 is about 357.9748594524. The cubic root of 128146 is about 50.4159960144.

Adding to 128146 its reverse (641821), we get a palindrome (769967).

The spelling of 128146 in words is "one hundred twenty-eight thousand, one hundred forty-six".