13220134 has 4 divisors (see below), whose sum is σ = 19830204. Its totient is φ = 6610066.

The previous prime is 13220131. The next prime is 13220177. The reversal of 13220134 is 43102231.

It is a happy number.

13220134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3305032 + ... + 3305035.

It is an arithmetic number, because the mean of its divisors is an integer number (4957551).

Almost surely, 2^13220134 is an apocalyptic number.

13220134 is a deficient number, since it is larger than the sum of its proper divisors (6610070).

13220134 is an equidigital number, since it uses as much as digits as its factorization.

13220134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6610069.

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

The square root of 13220134 is about 3635.9502196812. The cubic root of 13220134 is about 236.4532489418.

Adding to 13220134 its reverse (43102231), we get a palindrome (56322365).

The spelling of 13220134 in words is "thirteen million, two hundred twenty thousand, one hundred thirty-four".