115223115 has 32 divisors (see below), whose sum is σ = 211115520. Its totient is φ = 52568064.

The previous prime is 115223111. The next prime is 115223149. The reversal of 115223115 is 511322511.

It is not a de Polignac number, because 115223115 - 2² = 115223111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 115223091 and 115223100.

It is not an unprimeable number, because it can be changed into a prime (115223111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80032 + ... + 81458.

It is an arithmetic number, because the mean of its divisors is an integer number (6597360).

Almost surely, 2^115223115 is an apocalyptic number.

115223115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

115223115 is a deficient number, since it is larger than the sum of its proper divisors (95892405).

115223115 is a wasteful number, since it uses less digits than its factorization.

115223115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211.

The product of its digits is 300, while the sum is 21.

The square root of 115223115 is about 10734.2030444742. The cubic root of 115223115 is about 486.6087014739.

Adding to 115223115 its reverse (511322511), we get a palindrome (626545626).

The spelling of 115223115 in words is "one hundred fifteen million, two hundred twenty-three thousand, one hundred fifteen".