115511223 has 8 divisors (see below), whose sum is σ = 154072048. Its totient is φ = 76978944.

The previous prime is 115511213. The next prime is 115511237. The reversal of 115511223 is 322115511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 115511223 - 2⁵ = 115511191 is a prime.

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 115511223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115511213) 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 7 ways as a sum of consecutive naturals, for example, 5511 + ... + 16167.

It is an arithmetic number, because the mean of its divisors is an integer number (19259006).

Almost surely, 2^115511223 is an apocalyptic number.

115511223 is a deficient number, since it is larger than the sum of its proper divisors (38560825).

115511223 is a wasteful number, since it uses less digits than its factorization.

115511223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14273.

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

The square root of 115511223 is about 10747.6147586337. The cubic root of 115511223 is about 487.0139418390.

Adding to 115511223 its reverse (322115511), we get a palindrome (437626734).

The spelling of 115511223 in words is "one hundred fifteen million, five hundred eleven thousand, two hundred twenty-three".