281828115 has 12 divisors (see below), whose sum is σ = 488502144. Its totient is φ = 150308304.

The previous prime is 281828101. The next prime is 281828117. The reversal of 281828115 is 511828182.

It is not a de Polignac number, because 281828115 - 2¹⁷ = 281697043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 281828115.

It is not an unprimeable number, because it can be changed into a prime (281828117) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3131379 + ... + 3131468.

It is an arithmetic number, because the mean of its divisors is an integer number (40708512).

Almost surely, 2^281828115 is an apocalyptic number.

281828115 is a deficient number, since it is larger than the sum of its proper divisors (206674029).

281828115 is a wasteful number, since it uses less digits than its factorization.

281828115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6262858 (or 6262855 counting only the distinct ones).

The product of its digits is 10240, while the sum is 36.

The square root of 281828115 is about 16787.7370422580. The cubic root of 281828115 is about 655.6339568473.

The spelling of 281828115 in words is "two hundred eighty-one million, eight hundred twenty-eight thousand, one hundred fifteen".