13134220 has 48 divisors (see below), whose sum is σ = 30336768. Its totient is φ = 4736960.

The previous prime is 13134203. The next prime is 13134271. The reversal of 13134220 is 2243131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13134194 and 13134203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49809 + ... + 50071.

It is an arithmetic number, because the mean of its divisors is an integer number (632016).

Almost surely, 2^13134220 is an apocalyptic number.

13134220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13134220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15168384).

13134220 is an abundant number, since it is smaller than the sum of its proper divisors (17202548).

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

13134220 is a wasteful number, since it uses less digits than its factorization.

13134220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 13134220 is about 3624.1164440454. The cubic root of 13134220 is about 235.9399205488.

Adding to 13134220 its reverse (2243131), we get a palindrome (15377351).

The spelling of 13134220 in words is "thirteen million, one hundred thirty-four thousand, two hundred twenty".