134165409 has 8 divisors (see below), whose sum is σ = 204442560. Its totient is φ = 76665936.

The previous prime is 134165389. The next prime is 134165443. The reversal of 134165409 is 904561431.

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

It is not a de Polignac number, because 134165409 - 2¹⁵ = 134132641 is a prime.

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 134165409.

It is not an unprimeable number, because it can be changed into a prime (134164409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3194394 + ... + 3194435.

It is an arithmetic number, because the mean of its divisors is an integer number (25555320).

Almost surely, 2^134165409 is an apocalyptic number.

It is an amenable number.

134165409 is a deficient number, since it is larger than the sum of its proper divisors (70277151).

134165409 is an equidigital number, since it uses as much as digits as its factorization.

134165409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6388839.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 134165409 is about 11582.9792799607. The cubic root of 134165409 is about 511.9334643051.

The spelling of 134165409 in words is "one hundred thirty-four million, one hundred sixty-five thousand, four hundred nine".