134243826517 has 2 divisors, whose sum is σ = 134243826518. Its totient is φ = 134243826516.

The previous prime is 134243826491. The next prime is 134243826529. The reversal of 134243826517 is 715628342431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131323612996 + 2920213521 = 362386^2 + 54039^2 .

It is a cyclic number.

It is not a de Polignac number, because 134243826517 - 2⁷ = 134243826389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134243826557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67121913258 + 67121913259.

It is an arithmetic number, because the mean of its divisors is an integer number (67121913259).

Almost surely, 2^134243826517 is an apocalyptic number.

It is an amenable number.

134243826517 is a deficient number, since it is larger than the sum of its proper divisors (1).

134243826517 is an equidigital number, since it uses as much as digits as its factorization.

134243826517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 46.

The spelling of 134243826517 in words is "one hundred thirty-four billion, two hundred forty-three million, eight hundred twenty-six thousand, five hundred seventeen".