134425021 has 8 divisors (see below), whose sum is σ = 139097088. Its totient is φ = 129774000.

The previous prime is 134425003. The next prime is 134425051. The reversal of 134425021 is 120524431.

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 134425021 - 2⁵ = 134424989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134424983 and 134425001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134425051) 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, 8331 + ... + 18391.

It is an arithmetic number, because the mean of its divisors is an integer number (17387136).

Almost surely, 2^134425021 is an apocalyptic number.

It is an amenable number.

134425021 is a deficient number, since it is larger than the sum of its proper divisors (4672067).

134425021 is a wasteful number, since it uses less digits than its factorization.

134425021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10523.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 134425021 is about 11594.1804798787. The cubic root of 134425021 is about 512.2634510973.

Adding to 134425021 its reverse (120524431), we get a palindrome (254949452).

The spelling of 134425021 in words is "one hundred thirty-four million, four hundred twenty-five thousand, twenty-one".