115223223 has 4 divisors (see below), whose sum is σ = 153630968. Its totient is φ = 76815480.

The previous prime is 115223221. The next prime is 115223257. The reversal of 115223223 is 322322511.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 115223223 - 2¹ = 115223221 is a prime.

It is a super-2 number, since 2×115223223² = 26552782237015458, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115223223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115223221) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 19203868 + ... + 19203873.

It is an arithmetic number, because the mean of its divisors is an integer number (38407742).

Almost surely, 2^115223223 is an apocalyptic number.

115223223 is a deficient number, since it is larger than the sum of its proper divisors (38407745).

115223223 is an equidigital number, since it uses as much as digits as its factorization.

115223223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38407744.

The product of its digits is 720, while the sum is 21.

The square root of 115223223 is about 10734.2080751213. The cubic root of 115223223 is about 486.6088535085.

Adding to 115223223 its reverse (322322511), we get a palindrome (437545734).

The spelling of 115223223 in words is "one hundred fifteen million, two hundred twenty-three thousand, two hundred twenty-three".