134531980 has 48 divisors (see below), whose sum is σ = 312834816. Its totient is φ = 48185280.

The previous prime is 134531953. The next prime is 134531983. The reversal of 134531980 is 89135431.

It is not an unprimeable number, because it can be changed into a prime (134531983) 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, 10177 + ... + 19303.

It is an arithmetic number, because the mean of its divisors is an integer number (6517392).

Almost surely, 2^134531980 is an apocalyptic number.

134531980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134531980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156417408).

134531980 is an abundant number, since it is smaller than the sum of its proper divisors (178302836).

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

134531980 is a wasteful number, since it uses less digits than its factorization.

134531980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9214 (or 9212 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 134531980 is about 11598.7921784986. The cubic root of 134531980 is about 512.3992806238.

The spelling of 134531980 in words is "one hundred thirty-four million, five hundred thirty-one thousand, nine hundred eighty".