12120418 has 8 divisors (see below), whose sum is σ = 18229248. Its totient is φ = 6044004.

The previous prime is 12120403. The next prime is 12120419. The reversal of 12120418 is 81402121.

It is a happy number.

12120418 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 12120395 and 12120404.

It is not an unprimeable number, because it can be changed into a prime (12120419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7146 + ... + 8677.

It is an arithmetic number, because the mean of its divisors is an integer number (2278656).

Almost surely, 2^12120418 is an apocalyptic number.

12120418 is a deficient number, since it is larger than the sum of its proper divisors (6108830).

12120418 is a wasteful number, since it uses less digits than its factorization.

12120418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16208.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 12120418 is about 3481.4390702696. The cubic root of 12120418 is about 229.7061022434.

Adding to 12120418 its reverse (81402121), we get a palindrome (93522539).

The spelling of 12120418 in words is "twelve million, one hundred twenty thousand, four hundred eighteen".