134359909 has 2 divisors, whose sum is σ = 134359910. Its totient is φ = 134359908.

The previous prime is 134359889. The next prime is 134359949. The reversal of 134359909 is 909953431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95609284 + 38750625 = 9778^2 + 6225^2 .

It is an emirp because it is prime and its reverse (909953431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134359909 - 2⁷ = 134359781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134359949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67179954 + 67179955.

It is an arithmetic number, because the mean of its divisors is an integer number (67179955).

Almost surely, 2^134359909 is an apocalyptic number.

It is an amenable number.

134359909 is a deficient number, since it is larger than the sum of its proper divisors (1).

134359909 is an equidigital number, since it uses as much as digits as its factorization.

134359909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 131220, while the sum is 43.

The square root of 134359909 is about 11591.3721793410. The cubic root of 134359909 is about 512.1807286885.

The spelling of 134359909 in words is "one hundred thirty-four million, three hundred fifty-nine thousand, nine hundred nine".