134729980 has 96 divisors (see below), whose sum is σ = 357073920. Its totient is φ = 41479680.

The previous prime is 134729957. The next prime is 134729983. The reversal of 134729980 is 89927431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134729983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136569 + ... + 137551.

It is an arithmetic number, because the mean of its divisors is an integer number (3719520).

Almost surely, 2^134729980 is an apocalyptic number.

134729980 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 134729980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178536960).

134729980 is an abundant number, since it is smaller than the sum of its proper divisors (222343940).

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

134729980 is a wasteful number, since it uses less digits than its factorization.

134729980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099 (or 1097 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 134729980 is about 11607.3244117669. The cubic root of 134729980 is about 512.6505351964.

The spelling of 134729980 in words is "one hundred thirty-four million, seven hundred twenty-nine thousand, nine hundred eighty".