134298809 has 4 divisors (see below), whose sum is σ = 136575120. Its totient is φ = 132022500.

The previous prime is 134298763. The next prime is 134298833. The reversal of 134298809 is 908892431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 134298809 - 2⁸ = 134298553 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 134298809.

It is not an unprimeable number, because it can be changed into a prime (134298869) 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 3 ways as a sum of consecutive naturals, for example, 1138067 + ... + 1138184.

It is an arithmetic number, because the mean of its divisors is an integer number (34143780).

Almost surely, 2^134298809 is an apocalyptic number.

It is an amenable number.

134298809 is a deficient number, since it is larger than the sum of its proper divisors (2276311).

134298809 is an equidigital number, since it uses as much as digits as its factorization.

134298809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276310.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 134298809 is about 11588.7362986652. The cubic root of 134298809 is about 512.1030790691.

The spelling of 134298809 in words is "one hundred thirty-four million, two hundred ninety-eight thousand, eight hundred nine".