134356609 has 4 divisors (see below), whose sum is σ = 134447040. Its totient is φ = 134266180.

The previous prime is 134356601. The next prime is 134356679. The reversal of 134356609 is 906653431.

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 134356609 - 2³ = 134356601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134356601) 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, 42949 + ... + 45970.

It is an arithmetic number, because the mean of its divisors is an integer number (33611760).

Almost surely, 2^134356609 is an apocalyptic number.

It is an amenable number.

134356609 is a deficient number, since it is larger than the sum of its proper divisors (90431).

134356609 is an equidigital number, since it uses as much as digits as its factorization.

134356609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90430.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 134356609 is about 11591.2298312129. The cubic root of 134356609 is about 512.1765354480.

The spelling of 134356609 in words is "one hundred thirty-four million, three hundred fifty-six thousand, six hundred nine".