134636920 has 64 divisors (see below), whose sum is σ = 332748000. Its totient is φ = 48622080.

The previous prime is 134636899. The next prime is 134636933. The reversal of 134636920 is 29636431.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 68106 + ... + 70054.

Almost surely, 2^134636920 is an apocalyptic number.

134636920 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 134636920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166374000).

134636920 is an abundant number, since it is smaller than the sum of its proper divisors (198111080).

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

134636920 is a wasteful number, since it uses less digits than its factorization.

134636920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128 (or 2124 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 134636920 is about 11603.3150435554. The cubic root of 134636920 is about 512.5324762287.

The spelling of 134636920 in words is "one hundred thirty-four million, six hundred thirty-six thousand, nine hundred twenty".