134107809 has 24 divisors (see below), whose sum is σ = 198159360. Its totient is φ = 80609760.

The previous prime is 134107777. The next prime is 134107811. The reversal of 134107809 is 908701431.

It is not a de Polignac number, because 134107809 - 2⁵ = 134107777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 134107809.

It is not an unprimeable number, because it can be changed into a prime (134107819) 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, 44647 + ... + 47555.

It is an arithmetic number, because the mean of its divisors is an integer number (8256640).

Almost surely, 2^134107809 is an apocalyptic number.

It is an amenable number.

134107809 is a deficient number, since it is larger than the sum of its proper divisors (64051551).

134107809 is a wasteful number, since it uses less digits than its factorization.

134107809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3061 (or 3050 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 134107809 is about 11580.4926061027. The cubic root of 134107809 is about 511.8601925912.

The spelling of 134107809 in words is "one hundred thirty-four million, one hundred seven thousand, eight hundred nine".