134721120 has 96 divisors (see below), whose sum is σ = 442858752. Its totient is φ = 34360832.

The previous prime is 134721109. The next prime is 134721127. The reversal of 134721120 is 21127431.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134721127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4939 + ... + 17141.

It is an arithmetic number, because the mean of its divisors is an integer number (4613112).

Almost surely, 2^134721120 is an apocalyptic number.

134721120 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 134721120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221429376).

134721120 is an abundant number, since it is smaller than the sum of its proper divisors (308137632).

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

134721120 is a wasteful number, since it uses less digits than its factorization.

134721120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12244 (or 12236 counting only the distinct ones).

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

The square root of 134721120 is about 11606.9427499234. The cubic root of 134721120 is about 512.6392974518.

Adding to 134721120 its reverse (21127431), we get a palindrome (155848551).

The spelling of 134721120 in words is "one hundred thirty-four million, seven hundred twenty-one thousand, one hundred twenty".