134611209 has 12 divisors (see below), whose sum is σ = 194559300. Its totient is φ = 89685024.

The previous prime is 134611193. The next prime is 134611229. The reversal of 134611209 is 902116431.

It can be written as a sum of positive squares in 2 ways, for example, as 91011600 + 43599609 = 9540^2 + 6603^2 .

It is not a de Polignac number, because 134611209 - 2⁴ = 134611193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134611229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15007 + ... + 22235.

It is an arithmetic number, because the mean of its divisors is an integer number (16213275).

Almost surely, 2^134611209 is an apocalyptic number.

It is an amenable number.

134611209 is a deficient number, since it is larger than the sum of its proper divisors (59948091).

134611209 is a wasteful number, since it uses less digits than its factorization.

134611209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9304 (or 9301 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 134611209 is about 11602.2070745182. The cubic root of 134611209 is about 512.4998488201.

The spelling of 134611209 in words is "one hundred thirty-four million, six hundred eleven thousand, two hundred nine".