12813124 has 6 divisors (see below), whose sum is σ = 22422974. Its totient is φ = 6406560.

The previous prime is 12813109. The next prime is 12813131. The reversal of 12813124 is 42131821.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8940100 + 3873024 = 2990^2 + 1968^2 .

It is a super-2 number, since 2×12813124² = 328352293278752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12813095 and 12813104.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1601637 + ... + 1601644.

Almost surely, 2^12813124 is an apocalyptic number.

It is an amenable number.

12813124 is a deficient number, since it is larger than the sum of its proper divisors (9609850).

12813124 is a wasteful number, since it uses less digits than its factorization.

12813124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3203285 (or 3203283 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

The square root of 12813124 is about 3579.5424288588. The cubic root of 12813124 is about 234.0013392672.

Adding to 12813124 its reverse (42131821), we get a palindrome (54944945).

The spelling of 12813124 in words is "twelve million, eight hundred thirteen thousand, one hundred twenty-four".