8134209 has 8 divisors (see below), whose sum is σ = 12050720. Its totient is φ = 5422788.

The previous prime is 8134201. The next prime is 8134229. The reversal of 8134209 is 9024318.

It is not a de Polignac number, because 8134209 - 2³ = 8134201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 301267 = 8134209 / (8 + 1 + 3 + 4 + 2 + 0 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8134201) 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 7 ways as a sum of consecutive naturals, for example, 150607 + ... + 150660.

It is an arithmetic number, because the mean of its divisors is an integer number (1506340).

Almost surely, 2^8134209 is an apocalyptic number.

It is an amenable number.

8134209 is a deficient number, since it is larger than the sum of its proper divisors (3916511).

8134209 is a wasteful number, since it uses less digits than its factorization.

8134209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301276 (or 301270 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 8134209 is about 2852.0534707470. The cubic root of 8134209 is about 201.1122117928.

The spelling of 8134209 in words is "eight million, one hundred thirty-four thousand, two hundred nine".