128474 has 4 divisors (see below), whose sum is σ = 192714. Its totient is φ = 64236.

The previous prime is 128473. The next prime is 128477. The reversal of 128474 is 474821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 94249 + 34225 = 307^2 + 185^2 .

It is not an unprimeable number, because it can be changed into a prime (128473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32117 + ... + 32120.

2¹²⁸⁴⁷⁴ is an apocalyptic number.

128474 is a deficient number, since it is larger than the sum of its proper divisors (64240).

128474 is an equidigital number, since it uses as much as digits as its factorization.

128474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64239.

The product of its digits is 1792, while the sum is 26.

The square root of 128474 is about 358.4326994012. The cubic root of 128474 is about 50.4589739665.

The spelling of 128474 in words is "one hundred twenty-eight thousand, four hundred seventy-four".