254128172 has 12 divisors (see below), whose sum is σ = 470884680. Its totient is φ = 119589696.

The previous prime is 254128169. The next prime is 254128183. The reversal of 254128172 is 271821452.

It is a super-3 number, since 3×254128172³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1868522 + ... + 1868657.

It is an arithmetic number, because the mean of its divisors is an integer number (39240390).

Almost surely, 2^254128172 is an apocalyptic number.

It is an amenable number.

254128172 is a deficient number, since it is larger than the sum of its proper divisors (216756508).

254128172 is a wasteful number, since it uses less digits than its factorization.

254128172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3737200 (or 3737198 counting only the distinct ones).

The product of its digits is 8960, while the sum is 32.

The square root of 254128172 is about 15941.3980566323. The cubic root of 254128172 is about 633.4090597048.

The spelling of 254128172 in words is "two hundred fifty-four million, one hundred twenty-eight thousand, one hundred seventy-two".