134318409 has 4 divisors (see below), whose sum is σ = 179091216. Its totient is φ = 89545604.

The previous prime is 134318363. The next prime is 134318447. The reversal of 134318409 is 904813431.

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 134318409 - 2¹¹ = 134316361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134318409.

It is not an unprimeable number, because it can be changed into a prime (134318609) 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, 22386399 + ... + 22386404.

It is an arithmetic number, because the mean of its divisors is an integer number (44772804).

Almost surely, 2^134318409 is an apocalyptic number.

It is an amenable number.

134318409 is a deficient number, since it is larger than the sum of its proper divisors (44772807).

134318409 is an equidigital number, since it uses as much as digits as its factorization.

134318409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44772806.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 134318409 is about 11589.5819165318. The cubic root of 134318409 is about 512.1279905139.

The spelling of 134318409 in words is "one hundred thirty-four million, three hundred eighteen thousand, four hundred nine".