134280209 has 8 divisors (see below), whose sum is σ = 153535488. Its totient is φ = 115043040.

The previous prime is 134280143. The next prime is 134280257. The reversal of 134280209 is 902082431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 134280209 - 2¹² = 134276113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134280259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20909 + ... + 26565.

It is an arithmetic number, because the mean of its divisors is an integer number (19191936).

Almost surely, 2^134280209 is an apocalyptic number.

It is an amenable number.

134280209 is a deficient number, since it is larger than the sum of its proper divisors (19255279).

134280209 is an equidigital number, since it uses as much as digits as its factorization.

134280209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9055.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 134280209 is about 11587.9337675014. The cubic root of 134280209 is about 512.0794363748.

The spelling of 134280209 in words is "one hundred thirty-four million, two hundred eighty thousand, two hundred nine".