254128 has 20 divisors (see below), whose sum is σ = 562960. Its totient is φ = 108864.

The previous prime is 254119. The next prime is 254141. The reversal of 254128 is 821452.

It is a junction number, because it is equal to n+sod(n) for n = 254099 and 254108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1023 + ... + 1246.

It is an arithmetic number, because the mean of its divisors is an integer number (28148).

2²⁵⁴¹²⁸ is an apocalyptic number.

254128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

254128 is an abundant number, since it is smaller than the sum of its proper divisors (308832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

254128 is a wasteful number, since it uses less digits than its factorization.

254128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2284 (or 2278 counting only the distinct ones).

The product of its digits is 640, while the sum is 22.

The square root of 254128 is about 504.1110988661. Note that the first 3 decimals coincide. The cubic root of 254128 is about 63.3408916803.

The spelling of 254128 in words is "two hundred fifty-four thousand, one hundred twenty-eight".