12124816 has 20 divisors (see below), whose sum is σ = 25627824. Its totient is φ = 5511200.

The previous prime is 12124781. The next prime is 12124829. The reversal of 12124816 is 61842121.

It is a super-2 number, since 2×12124816² = 294022326067712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34270 + ... + 34621.

Almost surely, 2^12124816 is an apocalyptic number.

12124816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12124816 is an abundant number, since it is smaller than the sum of its proper divisors (13503008).

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

12124816 is a wasteful number, since it uses less digits than its factorization.

12124816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68910 (or 68904 counting only the distinct ones).

The product of its digits is 768, while the sum is 25.

The square root of 12124816 is about 3482.0706483356. The cubic root of 12124816 is about 229.7338825083.

Adding to 12124816 its reverse (61842121), we get a palindrome (73966937).

The spelling of 12124816 in words is "twelve million, one hundred twenty-four thousand, eight hundred sixteen".