134081509 has 4 divisors (see below), whose sum is σ = 135918316. Its totient is φ = 132244704.

The previous prime is 134081503. The next prime is 134081527. The reversal of 134081509 is 905180431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27269284 + 106812225 = 5222^2 + 10335^2 .

It is a cyclic number.

It is not a de Polignac number, because 134081509 - 2³ = 134081501 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 (134081501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 918294 + ... + 918439.

It is an arithmetic number, because the mean of its divisors is an integer number (33979579).

Almost surely, 2^134081509 is an apocalyptic number.

It is an amenable number.

134081509 is a deficient number, since it is larger than the sum of its proper divisors (1836807).

134081509 is an equidigital number, since it uses as much as digits as its factorization.

134081509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836806.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 134081509 is about 11579.3570201458. The cubic root of 134081509 is about 511.8267299533.

The spelling of 134081509 in words is "one hundred thirty-four million, eighty-one thousand, five hundred nine".