134205220 has 12 divisors (see below), whose sum is σ = 281831004. Its totient is φ = 53682080.

The previous prime is 134205217. The next prime is 134205229. The reversal of 134205220 is 22502431.

134205220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 30206016 + 103999204 = 5496^2 + 10198^2 .

It is a super-2 number, since 2×134205220² = 36022082150496800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (134205229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3355111 + ... + 3355150.

It is an arithmetic number, because the mean of its divisors is an integer number (23485917).

Almost surely, 2^134205220 is an apocalyptic number.

134205220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134205220 is an abundant number, since it is smaller than the sum of its proper divisors (147625784).

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

134205220 is a wasteful number, since it uses less digits than its factorization.

134205220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6710270 (or 6710268 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 134205220 is about 11584.6976654551. The cubic root of 134205220 is about 511.9840947614.

Adding to 134205220 its reverse (22502431), we get a palindrome (156707651).

The spelling of 134205220 in words is "one hundred thirty-four million, two hundred five thousand, two hundred twenty".