134711220 has 48 divisors (see below), whose sum is σ = 431077248. Its totient is φ = 30791040.

The previous prime is 134711209. The next prime is 134711221. The reversal of 134711220 is 22117431.

It is a super-3 number, since 3×134711220³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134711221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159951 + ... + 160790.

It is an arithmetic number, because the mean of its divisors is an integer number (8980776).

Almost surely, 2^134711220 is an apocalyptic number.

134711220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134711220 is an abundant number, since it is smaller than the sum of its proper divisors (296366028).

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

134711220 is a wasteful number, since it uses less digits than its factorization.

134711220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320760 (or 320758 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 134711220 is about 11606.5162731976. The cubic root of 134711220 is about 512.6267400212.

Adding to 134711220 its reverse (22117431), we get a palindrome (156828651).

The spelling of 134711220 in words is "one hundred thirty-four million, seven hundred eleven thousand, two hundred twenty".