134105321 has 4 divisors (see below), whose sum is σ = 153263232. Its totient is φ = 114947412.

The previous prime is 134105311. The next prime is 134105329. The reversal of 134105321 is 123501431.

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 134105321 - 2²² = 129911017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134105293 and 134105302.

It is not an unprimeable number, because it can be changed into a prime (134105329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9578945 + ... + 9578958.

It is an arithmetic number, because the mean of its divisors is an integer number (38315808).

Almost surely, 2^134105321 is an apocalyptic number.

It is an amenable number.

134105321 is a deficient number, since it is larger than the sum of its proper divisors (19157911).

134105321 is an equidigital number, since it uses as much as digits as its factorization.

134105321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19157910.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 134105321 is about 11580.3851835766. The cubic root of 134105321 is about 511.8570271876.

Adding to 134105321 its reverse (123501431), we get a palindrome (257606752).

The spelling of 134105321 in words is "one hundred thirty-four million, one hundred five thousand, three hundred twenty-one".