135193085693 has 2 divisors, whose sum is σ = 135193085694. Its totient is φ = 135193085692.

The previous prime is 135193085639. The next prime is 135193085717. The reversal of 135193085693 is 396580391531.

Together with previous prime (135193085639) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76874216644 + 58318869049 = 277262^2 + 241493^2 .

It is a cyclic number.

It is not a de Polignac number, because 135193085693 - 2¹⁴ = 135193069309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135193085593) 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 as a sum of consecutive naturals, namely, 67596542846 + 67596542847.

It is an arithmetic number, because the mean of its divisors is an integer number (67596542847).

Almost surely, 2^135193085693 is an apocalyptic number.

It is an amenable number.

135193085693 is a deficient number, since it is larger than the sum of its proper divisors (1).

135193085693 is an equidigital number, since it uses as much as digits as its factorization.

135193085693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2624400, while the sum is 53.

The spelling of 135193085693 in words is "one hundred thirty-five billion, one hundred ninety-three million, eighty-five thousand, six hundred ninety-three".