115212223 has 8 divisors (see below), whose sum is σ = 131747840. Its totient is φ = 98695800.

The previous prime is 115212161. The next prime is 115212233. The reversal of 115212223 is 322212511.

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

It is not a de Polignac number, because 115212223 - 2¹⁷ = 115081151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115212223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115212233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11998 + ... + 19348.

It is an arithmetic number, because the mean of its divisors is an integer number (16468480).

Almost surely, 2^115212223 is an apocalyptic number.

115212223 is a deficient number, since it is larger than the sum of its proper divisors (16535617).

115212223 is an equidigital number, since it uses as much as digits as its factorization.

115212223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9597.

The product of its digits is 240, while the sum is 19.

The square root of 115212223 is about 10733.6956822895. The cubic root of 115212223 is about 486.5933680083.

Adding to 115212223 its reverse (322212511), we get a palindrome (437424734).

The spelling of 115212223 in words is "one hundred fifteen million, two hundred twelve thousand, two hundred twenty-three".