13126220 has 12 divisors (see below), whose sum is σ = 27565104. Its totient is φ = 5250480.

The previous prime is 13126219. The next prime is 13126259. The reversal of 13126220 is 2262131.

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, 328136 + ... + 328175.

It is an arithmetic number, because the mean of its divisors is an integer number (2297092).

Almost surely, 2^13126220 is an apocalyptic number.

13126220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13126220 is an abundant number, since it is smaller than the sum of its proper divisors (14438884).

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

13126220 is a wasteful number, since it uses less digits than its factorization.

13126220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656320 (or 656318 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 13126220 is about 3623.0125586313. The cubic root of 13126220 is about 235.8920074709.

Adding to 13126220 its reverse (2262131), we get a palindrome (15388351).

The spelling of 13126220 in words is "thirteen million, one hundred twenty-six thousand, two hundred twenty".