134720000 has 100 divisors (see below), whose sum is σ = 337162386. Its totient is φ = 53760000.

The previous prime is 134719987. The next prime is 134720009. The reversal of 134720000 is 27431.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 8202496 + 126517504 = 2864^2 + 11248^2 .

It is a tau number, because it is divible by the number of its divisors (100).

It is not an unprimeable number, because it can be changed into a prime (134720009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 319790 + ... + 320210.

Almost surely, 2^134720000 is an apocalyptic number.

134720000 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 134720000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168581193).

134720000 is an abundant number, since it is smaller than the sum of its proper divisors (202442386).

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

134720000 is an frugal number, since it uses more digits than its factorization.

134720000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 134720000 is about 11606.8945028375. The cubic root of 134720000 is about 512.6378768441.

Adding to 134720000 its reverse (27431), we get a palindrome (134747431).

The spelling of 134720000 in words is "one hundred thirty-four million, seven hundred twenty thousand".