134838311813 has 4 divisors (see below), whose sum is σ = 134841782028. Its totient is φ = 134834841600.

The previous prime is 134838311771. The next prime is 134838311821. The reversal of 134838311813 is 318113838431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 318113838431 = 1567 ⋅203008193.

It can be written as a sum of positive squares in 2 ways, for example, as 81820025764 + 53018286049 = 286042^2 + 230257^2 .

It is a cyclic number.

It is not a de Polignac number, because 134838311813 - 2⁸ = 134838311557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134838311893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1676156 + ... + 1754757.

It is an arithmetic number, because the mean of its divisors is an integer number (33710445507).

Almost surely, 2^134838311813 is an apocalyptic number.

It is an amenable number.

134838311813 is a deficient number, since it is larger than the sum of its proper divisors (3470215).

134838311813 is an equidigital number, since it uses as much as digits as its factorization.

134838311813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3470214.

The product of its digits is 165888, while the sum is 44.

The spelling of 134838311813 in words is "one hundred thirty-four billion, eight hundred thirty-eight million, three hundred eleven thousand, eight hundred thirteen".