115215223 has 4 divisors (see below), whose sum is σ = 115267680. Its totient is φ = 115162768.

The previous prime is 115215203. The next prime is 115215227. The reversal of 115215223 is 322512511.

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

It is a cyclic number.

It is not a de Polignac number, because 115215223 - 2¹³ = 115207031 is a prime.

It is a super-2 number, since 2×115215223² = 26549095221879458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115215194 and 115215203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115215227) 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, 22783 + ... + 27376.

It is an arithmetic number, because the mean of its divisors is an integer number (28816920).

Almost surely, 2^115215223 is an apocalyptic number.

115215223 is a deficient number, since it is larger than the sum of its proper divisors (52457).

115215223 is an equidigital number, since it uses as much as digits as its factorization.

115215223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52456.

The product of its digits is 600, while the sum is 22.

The square root of 115215223 is about 10733.8354282148. The cubic root of 115215223 is about 486.5975914243.

Adding to 115215223 its reverse (322512511), we get a palindrome (437727734).

The spelling of 115215223 in words is "one hundred fifteen million, two hundred fifteen thousand, two hundred twenty-three".