134321 has 4 divisors (see below), whose sum is σ = 146544. Its totient is φ = 122100.

The previous prime is 134293. The next prime is 134327. The reversal of 134321 is 123431.

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 not a de Polignac number, because 134321 - 2⁶ = 134257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 134296 and 134305.

It is not an unprimeable number, because it can be changed into a prime (134327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6095 + ... + 6116.

It is an arithmetic number, because the mean of its divisors is an integer number (36636).

2¹³⁴³²¹ is an apocalyptic number.

134321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

134321 is a deficient number, since it is larger than the sum of its proper divisors (12223).

134321 is a wasteful number, since it uses less digits than its factorization.

134321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12222.

The product of its digits is 72, while the sum is 14.

The square root of 134321 is about 366.4982946754. The cubic root of 134321 is about 51.2131283473.

Adding to 134321 its reverse (123431), we get a palindrome (257752).

It can be divided in two parts, 1343 and 21, that multiplied together give a triangular number (28203 = T₂₃₇).

The spelling of 134321 in words is "one hundred thirty-four thousand, three hundred twenty-one".