134816609 has 4 divisors (see below), whose sum is σ = 141912240. Its totient is φ = 127720980.

The previous prime is 134816587. The next prime is 134816623. The reversal of 134816609 is 906618431.

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, and also an emirpimes, since its reverse is a distinct semiprime: 906618431 = 433 ⋅2093807.

It is a cyclic number.

It is not a de Polignac number, because 134816609 - 2²⁴ = 118039393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134816699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3547787 + ... + 3547824.

It is an arithmetic number, because the mean of its divisors is an integer number (35478060).

Almost surely, 2^134816609 is an apocalyptic number.

134816609 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

134816609 is a deficient number, since it is larger than the sum of its proper divisors (7095631).

134816609 is an equidigital number, since it uses as much as digits as its factorization.

134816609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7095630.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 134816609 is about 11611.0554645131. The cubic root of 134816609 is about 512.7603867386.

The spelling of 134816609 in words is "one hundred thirty-four million, eight hundred sixteen thousand, six hundred nine".