128354 has 8 divisors (see below), whose sum is σ = 199260. Its totient is φ = 61936.

The previous prime is 128351. The next prime is 128377. The reversal of 128354 is 453821.

128354 = 52² + 53² + ... + 80².

It can be written as a sum of positive squares in 2 ways, for example, as 112225 + 16129 = 335^2 + 127^2 .

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 (128351) 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, 1049 + ... + 1164.

2¹²⁸³⁵⁴ is an apocalyptic number.

128354 is a deficient number, since it is larger than the sum of its proper divisors (70906).

128354 is a wasteful number, since it uses less digits than its factorization.

128354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244.

The product of its digits is 960, while the sum is 23.

The square root of 128354 is about 358.2652648527. The cubic root of 128354 is about 50.4432588203.

The spelling of 128354 in words is "one hundred twenty-eight thousand, three hundred fifty-four".