134842709 has 4 divisors (see below), whose sum is σ = 134939820. Its totient is φ = 134745600.

The previous prime is 134842699. The next prime is 134842717. The reversal of 134842709 is 907248431.

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 14326225 + 120516484 = 3785^2 + 10978^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134842709 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 (134842909) 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, 46442 + ... + 49259.

It is an arithmetic number, because the mean of its divisors is an integer number (33734955).

Almost surely, 2^134842709 is an apocalyptic number.

It is an amenable number.

134842709 is a deficient number, since it is larger than the sum of its proper divisors (97111).

134842709 is an equidigital number, since it uses as much as digits as its factorization.

134842709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97110.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 134842709 is about 11612.1793389527. The cubic root of 134842709 is about 512.7934741122.

The spelling of 134842709 in words is "one hundred thirty-four million, eight hundred forty-two thousand, seven hundred nine".