134798909 has 8 divisors (see below), whose sum is σ = 154140480. Its totient is φ = 115478496.

The previous prime is 134798903. The next prime is 134798927. The reversal of 134798909 is 909897431.

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

It is not a de Polignac number, because 134798909 - 2²⁰ = 133750333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134798903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12257 + ... + 20489.

It is an arithmetic number, because the mean of its divisors is an integer number (19267560).

Almost surely, 2^134798909 is an apocalyptic number.

It is an amenable number.

134798909 is a deficient number, since it is larger than the sum of its proper divisors (19341571).

134798909 is an equidigital number, since it uses as much as digits as its factorization.

134798909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10579.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 134798909 is about 11610.2932348843. The cubic root of 134798909 is about 512.7379457448.

The spelling of 134798909 in words is "one hundred thirty-four million, seven hundred ninety-eight thousand, nine hundred nine".