12124818 has 24 divisors (see below), whose sum is σ = 27413568. Its totient is φ = 3865752.

The previous prime is 12124781. The next prime is 12124829. The reversal of 12124818 is 81842121.

It is a super-2 number, since 2×12124818² = 294022423066248, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12124791 and 12124800.

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, 14230 + ... + 15057.

It is an arithmetic number, because the mean of its divisors is an integer number (1142232).

Almost surely, 2^12124818 is an apocalyptic number.

12124818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12124818 is an abundant number, since it is smaller than the sum of its proper divisors (15288750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12124818 is a wasteful number, since it uses less digits than its factorization.

12124818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29318 (or 29315 counting only the distinct ones).

The product of its digits is 1024, while the sum is 27.

The square root of 12124818 is about 3482.0709355210. The cubic root of 12124818 is about 229.7338951399.

Adding to 12124818 its reverse (81842121), we get a palindrome (93966939).

The spelling of 12124818 in words is "twelve million, one hundred twenty-four thousand, eight hundred eighteen".