134323209 has 24 divisors (see below), whose sum is σ = 200366400. Its totient is φ = 86647968.

The previous prime is 134323193. The next prime is 134323219. The reversal of 134323209 is 902323431.

It is a happy number.

134323209 is a `hidden beast` number, since 134 + 323 + 209 = 666.

It is not a de Polignac number, because 134323209 - 2⁴ = 134323193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134323219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65254 + ... + 67280.

It is an arithmetic number, because the mean of its divisors is an integer number (8348600).

Almost surely, 2^134323209 is an apocalyptic number.

It is an amenable number.

134323209 is a deficient number, since it is larger than the sum of its proper divisors (66043191).

134323209 is a wasteful number, since it uses less digits than its factorization.

134323209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269 (or 2266 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 134323209 is about 11589.7889972165. The cubic root of 134323209 is about 512.1340909064.

It can be divided in two parts, 13432 and 3209, that added together give a square (16641 = 129²).

The spelling of 134323209 in words is "one hundred thirty-four million, three hundred twenty-three thousand, two hundred nine".