134200021 has 8 divisors (see below), whose sum is σ = 141372000. Its totient is φ = 127038960.

The previous prime is 134200007. The next prime is 134200069. The reversal of 134200021 is 120002431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 134200021 - 2⁹ = 134199509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134199974 and 134200010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134206021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39030 + ... + 42328.

It is an arithmetic number, because the mean of its divisors is an integer number (17671500).

Almost surely, 2^134200021 is an apocalyptic number.

It is an amenable number.

134200021 is a deficient number, since it is larger than the sum of its proper divisors (7171979).

134200021 is a wasteful number, since it uses less digits than its factorization.

134200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5459.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 134200021 is about 11584.4732724453. The cubic root of 134200021 is about 511.9774833950.

Adding to 134200021 its reverse (120002431), we get a palindrome (254202452).

The spelling of 134200021 in words is "one hundred thirty-four million, two hundred thousand, twenty-one".