135189317801 has 2 divisors, whose sum is σ = 135189317802. Its totient is φ = 135189317800.

The previous prime is 135189317713. The next prime is 135189317803. The reversal of 135189317801 is 108713981531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69655877776 + 65533440025 = 263924^2 + 255995^2 .

It is an emirp because it is prime and its reverse (108713981531) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135189317801 is a prime.

Together with 135189317803, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135189317803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67594658900 + 67594658901.

It is an arithmetic number, because the mean of its divisors is an integer number (67594658901).

Almost surely, 2^135189317801 is an apocalyptic number.

It is an amenable number.

135189317801 is a deficient number, since it is larger than the sum of its proper divisors (1).

135189317801 is an equidigital number, since it uses as much as digits as its factorization.

135189317801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 47.

The spelling of 135189317801 in words is "one hundred thirty-five billion, one hundred eighty-nine million, three hundred seventeen thousand, eight hundred one".