134309 has 6 divisors (see below), whose sum is σ = 156294. Its totient is φ = 115080.

The previous prime is 134293. The next prime is 134327. The reversal of 134309 is 903431.

It can be written as a sum of positive squares in only one way, i.e., 103684 + 30625 = 322^2 + 175^2 .

It is not a de Polignac number, because 134309 - 2⁴ = 134293 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134339) 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 5 ways as a sum of consecutive naturals, for example, 1322 + ... + 1419.

It is an arithmetic number, because the mean of its divisors is an integer number (26049).

2¹³⁴³⁰⁹ is an apocalyptic number.

It is an amenable number.

134309 is a deficient number, since it is larger than the sum of its proper divisors (21985).

134309 is an equidigital number, since it uses as much as digits as its factorization.

134309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755 (or 2748 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 134309 is about 366.4819231558. The cubic root of 134309 is about 51.2116032052.

The spelling of 134309 in words is "one hundred thirty-four thousand, three hundred nine".