134340240346061 has 4 divisors (see below), whose sum is σ = 134420731803900. Its totient is φ = 134259748888224.

The previous prime is 134340240345959. The next prime is 134340240346069. The reversal of 134340240346061 is 160643042043431.

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 29267613102025 + 105072627244036 = 5409955^2 + 10250494^2 .

It is a cyclic number.

It is not a de Polignac number, because 134340240346061 - 2¹⁰ = 134340240345037 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 (134340240346069) 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, 40245726416 + ... + 40245729753.

It is an arithmetic number, because the mean of its divisors is an integer number (33605182950975).

Almost surely, 2^{134340240346061} is an apocalyptic number.

It is an amenable number.

134340240346061 is a deficient number, since it is larger than the sum of its proper divisors (80491457839).

134340240346061 is an equidigital number, since it uses as much as digits as its factorization.

134340240346061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80491457838.

The product of its (nonzero) digits is 497664, while the sum is 41.

Adding to 134340240346061 its reverse (160643042043431), we get a palindrome (294983282389492).

The spelling of 134340240346061 in words is "one hundred thirty-four trillion, three hundred forty billion, two hundred forty million, three hundred forty-six thousand, sixty-one".