12145118 has 24 divisors (see below), whose sum is σ = 19303920. Its totient is φ = 5728800.

The previous prime is 12145103. The next prime is 12145151. The reversal of 12145118 is 81154121.

It is a junction number, because it is equal to n+sod(n) for n = 12145093 and 12145102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136418 + ... + 136506.

It is an arithmetic number, because the mean of its divisors is an integer number (804330).

Almost surely, 2^12145118 is an apocalyptic number.

12145118 is a deficient number, since it is larger than the sum of its proper divisors (7158802).

12145118 is an equidigital number, since it uses as much as digits as its factorization.

12145118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 193 counting only the distinct ones).

The product of its digits is 320, while the sum is 23.

The square root of 12145118 is about 3484.9846484597. The cubic root of 12145118 is about 229.8620344602.

Adding to 12145118 its reverse (81154121), we get a palindrome (93299239).

The spelling of 12145118 in words is "twelve million, one hundred forty-five thousand, one hundred eighteen".