135017804917 has 2 divisors, whose sum is σ = 135017804918. Its totient is φ = 135017804916.

The previous prime is 135017804899. The next prime is 135017804939. The reversal of 135017804917 is 719408710531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106266872196 + 28750932721 = 325986^2 + 169561^2 .

It is a cyclic number.

It is not a de Polignac number, because 135017804917 - 2²³ = 135009416309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135017804947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67508902458 + 67508902459.

It is an arithmetic number, because the mean of its divisors is an integer number (67508902459).

Almost surely, 2^135017804917 is an apocalyptic number.

It is an amenable number.

135017804917 is a deficient number, since it is larger than the sum of its proper divisors (1).

135017804917 is an equidigital number, since it uses as much as digits as its factorization.

135017804917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 46.

The spelling of 135017804917 in words is "one hundred thirty-five billion, seventeen million, eight hundred four thousand, nine hundred seventeen".