134617811409 has 63 divisors (see below), whose sum is σ = 205355188857. Its totient is φ = 88206416424.

The previous prime is 134617811407. The next prime is 134617811417. The reversal of 134617811409 is 904118716431.

The square root of 134617811409 is 366903.

It is a perfect power (a square), and thus also a powerful number.

134617811409 is a `hidden beast` number, since 1 + 3 + 461 + 78 + 114 + 0 + 9 = 666.

It is not a de Polignac number, because 134617811409 - 2¹ = 134617811407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134617811407) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 1059982704 + ... + 1059982830.

Almost surely, 2^134617811409 is an apocalyptic number.

134617811409 is the 366903-rd square number.

134617811409 is the 183452-nd centered octagonal number.

It is an amenable number.

134617811409 is a deficient number, since it is larger than the sum of its proper divisors (70737377448).

134617811409 is an frugal number, since it uses more digits than its factorization.

134617811409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 134617811409 in words is "one hundred thirty-four billion, six hundred seventeen million, eight hundred eleven thousand, four hundred nine".