134686720 has 96 divisors (see below), whose sum is σ = 369532800. Its totient is φ = 46153728.

The previous prime is 134686711. The next prime is 134686751. The reversal of 134686720 is 27686431.

It is a self number, because there is not a number n which added to its sum of digits gives 134686720.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70741 + ... + 72619.

It is an arithmetic number, because the mean of its divisors is an integer number (3849300).

Almost surely, 2^134686720 is an apocalyptic number.

134686720 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 134686720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184766400).

134686720 is an abundant number, since it is smaller than the sum of its proper divisors (234846080).

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

134686720 is an equidigital number, since it uses as much as digits as its factorization.

134686720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913 (or 1893 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 134686720 is about 11605.4607836139. The cubic root of 134686720 is about 512.5956609059.

The spelling of 134686720 in words is "one hundred thirty-four million, six hundred eighty-six thousand, seven hundred twenty".