134144421 has 4 divisors (see below), whose sum is σ = 178859232. Its totient is φ = 89429612.

The previous prime is 134144407. The next prime is 134144443. The reversal of 134144421 is 124441431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 134144421 - 2⁷ = 134144293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 134144391 and 134144400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134143421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22357401 + ... + 22357406.

It is an arithmetic number, because the mean of its divisors is an integer number (44714808).

Almost surely, 2^134144421 is an apocalyptic number.

It is an amenable number.

134144421 is a deficient number, since it is larger than the sum of its proper divisors (44714811).

134144421 is an equidigital number, since it uses as much as digits as its factorization.

134144421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44714810.

The product of its digits is 1536, while the sum is 24.

The square root of 134144421 is about 11582.0732599997. The cubic root of 134144421 is about 511.9067683534.

Adding to 134144421 its reverse (124441431), we get a palindrome (258585852).

The spelling of 134144421 in words is "one hundred thirty-four million, one hundred forty-four thousand, four hundred twenty-one".