128074 has 4 divisors (see below), whose sum is σ = 192114. Its totient is φ = 64036.

The previous prime is 128053. The next prime is 128099. The reversal of 128074 is 470821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 470821 = 13 ⋅36217.

It can be written as a sum of positive squares in only one way, i.e., 127449 + 625 = 357^2 + 25^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32017 + ... + 32020.

2¹²⁸⁰⁷⁴ is an apocalyptic number.

128074 is a deficient number, since it is larger than the sum of its proper divisors (64040).

128074 is an equidigital number, since it uses as much as digits as its factorization.

128074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64039.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 128074 is about 357.8742796011. The cubic root of 128074 is about 50.4065520163.

Adding to 128074 its reverse (470821), we get a palindrome (598895).

The spelling of 128074 in words is "one hundred twenty-eight thousand, seventy-four".