134135220 has 24 divisors (see below), whose sum is σ = 375578784. Its totient is φ = 35769376.

The previous prime is 134135213. The next prime is 134135251. The reversal of 134135220 is 22531431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1117734 + ... + 1117853.

It is an arithmetic number, because the mean of its divisors is an integer number (15649116).

Almost surely, 2^134135220 is an apocalyptic number.

134135220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134135220 is an abundant number, since it is smaller than the sum of its proper divisors (241443564).

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

134135220 is a wasteful number, since it uses less digits than its factorization.

134135220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2235599 (or 2235597 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 134135220 is about 11581.6760445110. The cubic root of 134135220 is about 511.8950641472.

Adding to 134135220 its reverse (22531431), we get a palindrome (156666651).

The spelling of 134135220 in words is "one hundred thirty-four million, one hundred thirty-five thousand, two hundred twenty".