134424021 has 8 divisors (see below), whose sum is σ = 179295264. Its totient is φ = 89584400.

The previous prime is 134423987. The next prime is 134424023. The reversal of 134424021 is 120424431.

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 134424021 - 2¹⁰ = 134422997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134424023) 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 7 ways as a sum of consecutive naturals, for example, 5050 + ... + 17156.

It is an arithmetic number, because the mean of its divisors is an integer number (22411908).

Almost surely, 2^134424021 is an apocalyptic number.

It is an amenable number.

134424021 is a deficient number, since it is larger than the sum of its proper divisors (44871243).

134424021 is a wasteful number, since it uses less digits than its factorization.

134424021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15811.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 134424021 is about 11594.1373547151. The cubic root of 134424021 is about 512.2621808360.

Adding to 134424021 its reverse (120424431), we get a palindrome (254848452).

The spelling of 134424021 in words is "one hundred thirty-four million, four hundred twenty-four thousand, twenty-one".