134836720 has 20 divisors (see below), whose sum is σ = 313495560. Its totient is φ = 53934656.

The previous prime is 134836703. The next prime is 134836721. The reversal of 134836720 is 27638431.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134836721) 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 3 ways as a sum of consecutive naturals, for example, 842650 + ... + 842809.

It is an arithmetic number, because the mean of its divisors is an integer number (15674778).

Almost surely, 2^134836720 is an apocalyptic number.

134836720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134836720 is an abundant number, since it is smaller than the sum of its proper divisors (178658840).

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

134836720 is a wasteful number, since it uses less digits than its factorization.

134836720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685472 (or 1685466 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 134836720 is about 11611.9214602924. The cubic root of 134836720 is about 512.7858821418.

The spelling of 134836720 in words is "one hundred thirty-four million, eight hundred thirty-six thousand, seven hundred twenty".