134134661365 has 4 divisors (see below), whose sum is σ = 160961593644. Its totient is φ = 107307729088.

The previous prime is 134134661359. The next prime is 134134661411. The reversal of 134134661365 is 563166431431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42636881169 + 91497780196 = 206487^2 + 302486^2 .

It is a cyclic number.

It is not a de Polignac number, because 134134661365 - 2²¹ = 134132564213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13413466132 + ... + 13413466141.

It is an arithmetic number, because the mean of its divisors is an integer number (40240398411).

Almost surely, 2^134134661365 is an apocalyptic number.

It is an amenable number.

134134661365 is a deficient number, since it is larger than the sum of its proper divisors (26826932279).

134134661365 is an equidigital number, since it uses as much as digits as its factorization.

134134661365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26826932278.

The product of its digits is 466560, while the sum is 43.

The spelling of 134134661365 in words is "one hundred thirty-four billion, one hundred thirty-four million, six hundred sixty-one thousand, three hundred sixty-five".