134481220 has 24 divisors (see below), whose sum is σ = 299023704. Its totient is φ = 50628096.

The previous prime is 134481211. The next prime is 134481223. The reversal of 134481220 is 22184431.

It can be written as a sum of positive squares in 4 ways, for example, as 57638464 + 76842756 = 7592^2 + 8766^2 .

It is not an unprimeable number, because it can be changed into a prime (134481223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197427 + ... + 198106.

It is an arithmetic number, because the mean of its divisors is an integer number (12459321).

Almost surely, 2^134481220 is an apocalyptic number.

134481220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134481220 is an abundant number, since it is smaller than the sum of its proper divisors (164542484).

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

134481220 is a wasteful number, since it uses less digits than its factorization.

134481220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395559 (or 395557 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 134481220 is about 11596.6038131860. The cubic root of 134481220 is about 512.3348283913.

The spelling of 134481220 in words is "one hundred thirty-four million, four hundred eighty-one thousand, two hundred twenty".