134344021 has 8 divisors (see below), whose sum is σ = 156053504. Its totient is φ = 113263920.

The previous prime is 134344009. The next prime is 134344031. The reversal of 134344021 is 120443431.

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

It is not a de Polignac number, because 134344021 - 2¹³ = 134335829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134343983 and 134344001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134344031) 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, 156885 + ... + 157738.

It is an arithmetic number, because the mean of its divisors is an integer number (19506688).

Almost surely, 2^134344021 is an apocalyptic number.

It is an amenable number.

134344021 is a deficient number, since it is larger than the sum of its proper divisors (21709483).

134344021 is an equidigital number, since it uses as much as digits as its factorization.

134344021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314691.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 134344021 is about 11590.6868217548. The cubic root of 134344021 is about 512.1605395109.

Adding to 134344021 its reverse (120443431), we get a palindrome (254787452).

The spelling of 134344021 in words is "one hundred thirty-four million, three hundred forty-four thousand, twenty-one".