253445128 has 16 divisors (see below), whose sum is σ = 475421760. Its totient is φ = 126666000.

The previous prime is 253445113. The next prime is 253445141. The reversal of 253445128 is 821544352.

It is a junction number, because it is equal to n+sod(n) for n = 253445093 and 253445102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16653 + ... + 28003.

It is an arithmetic number, because the mean of its divisors is an integer number (29713860).

Almost surely, 2^253445128 is an apocalyptic number.

It is an amenable number.

253445128 is a deficient number, since it is larger than the sum of its proper divisors (221976632).

253445128 is a wasteful number, since it uses less digits than its factorization.

253445128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14148 (or 14144 counting only the distinct ones).

The product of its digits is 38400, while the sum is 34.

The square root of 253445128 is about 15919.9600502011. The cubic root of 253445128 is about 632.8410596343.

The spelling of 253445128 in words is "two hundred fifty-three million, four hundred forty-five thousand, one hundred twenty-eight".