282128231 has 24 divisors (see below), whose sum is σ = 359978256. Its totient is φ = 218641920.

The previous prime is 282128221. The next prime is 282128237. The reversal of 282128231 is 132821282.

It is not a de Polignac number, because 282128231 - 2¹⁴ = 282111847 is a prime.

It is a super-2 number, since 2×282128231² = 159192677454378722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 282128194 and 282128203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (282128237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104855 + ... + 107511.

It is an arithmetic number, because the mean of its divisors is an integer number (14999094).

Almost surely, 2^282128231 is an apocalyptic number.

282128231 is a deficient number, since it is larger than the sum of its proper divisors (77850025).

282128231 is a wasteful number, since it uses less digits than its factorization.

282128231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2879 (or 2872 counting only the distinct ones).

The product of its digits is 3072, while the sum is 29.

The square root of 282128231 is about 16796.6732122763. The cubic root of 282128231 is about 655.8666003471.

The spelling of 282128231 in words is "two hundred eighty-two million, one hundred twenty-eight thousand, two hundred thirty-one".