13126228 has 6 divisors (see below), whose sum is σ = 22970906. Its totient is φ = 6563112.

The previous prime is 13126219. The next prime is 13126259. The reversal of 13126228 is 82262131.

It can be written as a sum of positive squares in only one way, i.e., 8749764 + 4376464 = 2958^2 + 2092^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1640775 + ... + 1640782.

Almost surely, 2^13126228 is an apocalyptic number.

It is an amenable number.

13126228 is a deficient number, since it is larger than the sum of its proper divisors (9844678).

13126228 is a wasteful number, since it uses less digits than its factorization.

13126228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3281561 (or 3281559 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 13126228 is about 3623.0136626847. The cubic root of 13126228 is about 235.8920553937.

Adding to 13126228 its reverse (82262131), we get a palindrome (95388359).

The spelling of 13126228 in words is "thirteen million, one hundred twenty-six thousand, two hundred twenty-eight".