12118315 has 8 divisors (see below), whose sum is σ = 15864048. Its totient is φ = 8813280.

The previous prime is 12118313. The next prime is 12118349. The reversal of 12118315 is 51381121.

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

It is not a de Polignac number, because 12118315 - 2¹ = 12118313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12118313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110112 + ... + 110221.

It is an arithmetic number, because the mean of its divisors is an integer number (1983006).

Almost surely, 2^12118315 is an apocalyptic number.

12118315 is a deficient number, since it is larger than the sum of its proper divisors (3745733).

12118315 is a wasteful number, since it uses less digits than its factorization.

12118315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220349.

The product of its digits is 240, while the sum is 22.

The square root of 12118315 is about 3481.1370268922. The cubic root of 12118315 is about 229.6928161264.

Adding to 12118315 its reverse (51381121), we get a palindrome (63499436).

The spelling of 12118315 in words is "twelve million, one hundred eighteen thousand, three hundred fifteen".