134371309 has 16 divisors (see below), whose sum is σ = 142931376. Its totient is φ = 126144000.

The previous prime is 134371291. The next prime is 134371339. The reversal of 134371309 is 903173431.

It can be written as a sum of positive squares in 8 ways, for example, as 23068809 + 111302500 = 4803^2 + 10550^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134371309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134371339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152779 + ... + 153655.

It is an arithmetic number, because the mean of its divisors is an integer number (8933211).

Almost surely, 2^134371309 is an apocalyptic number.

It is an amenable number.

134371309 is a deficient number, since it is larger than the sum of its proper divisors (8560067).

134371309 is a wasteful number, since it uses less digits than its factorization.

134371309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 134371309 is about 11591.8639139700. The cubic root of 134371309 is about 512.1952139002.

The spelling of 134371309 in words is "one hundred thirty-four million, three hundred seventy-one thousand, three hundred nine".