134366909 has 4 divisors (see below), whose sum is σ = 134727516. Its totient is φ = 134006304.

The previous prime is 134366863. The next prime is 134366923. The reversal of 134366909 is 909663431.

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 75307684 + 59059225 = 8678^2 + 7685^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134366909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134366509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179744 + ... + 180489.

It is an arithmetic number, because the mean of its divisors is an integer number (33681879).

Almost surely, 2^134366909 is an apocalyptic number.

It is an amenable number.

134366909 is a deficient number, since it is larger than the sum of its proper divisors (360607).

134366909 is an equidigital number, since it uses as much as digits as its factorization.

134366909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360606.

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 134366909 is about 11591.6741241289. The cubic root of 134366909 is about 512.1896232138.

The spelling of 134366909 in words is "one hundred thirty-four million, three hundred sixty-six thousand, nine hundred nine".