115831222 has 16 divisors (see below), whose sum is σ = 189483840. Its totient is φ = 52782912.

The previous prime is 115831211. The next prime is 115831241. The reversal of 115831222 is 222138511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26143 + ... + 30250.

It is an arithmetic number, because the mean of its divisors is an integer number (11842740).

Almost surely, 2^115831222 is an apocalyptic number.

115831222 is a deficient number, since it is larger than the sum of its proper divisors (73652618).

115831222 is a wasteful number, since it uses less digits than its factorization.

115831222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56487.

The product of its digits is 960, while the sum is 25.

The square root of 115831222 is about 10762.4914401824. The cubic root of 115831222 is about 487.4632496513.

Adding to 115831222 its reverse (222138511), we get a palindrome (337969733).

The spelling of 115831222 in words is "one hundred fifteen million, eight hundred thirty-one thousand, two hundred twenty-two".