134743509 has 6 divisors (see below), whose sum is σ = 194629526. Its totient is φ = 89829000.

The previous prime is 134743493. The next prime is 134743517. The reversal of 134743509 is 905347431.

It can be written as a sum of positive squares in only one way, i.e., 118919025 + 15824484 = 10905^2 + 3978^2 .

It is not a de Polignac number, because 134743509 - 2⁴ = 134743493 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 (134743009) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7485742 + ... + 7485759.

Almost surely, 2^134743509 is an apocalyptic number.

It is an amenable number.

134743509 is a deficient number, since it is larger than the sum of its proper divisors (59886017).

134743509 is a wasteful number, since it uses less digits than its factorization.

134743509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14971507 (or 14971504 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 134743509 is about 11607.9071757143. The cubic root of 134743509 is about 512.6676940029.

The spelling of 134743509 in words is "one hundred thirty-four million, seven hundred forty-three thousand, five hundred nine".