173135693 has 2 divisors, whose sum is σ = 173135694. Its totient is φ = 173135692.

The previous prime is 173135681. The next prime is 173135707. The reversal of 173135693 is 396531371.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131171209 + 41964484 = 11453^2 + 6478^2 .

It is an emirp because it is prime and its reverse (396531371) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 173135693 - 2¹⁸ = 172873549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (173135603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86567846 + 86567847.

It is an arithmetic number, because the mean of its divisors is an integer number (86567847).

Almost surely, 2^173135693 is an apocalyptic number.

It is an amenable number.

173135693 is a deficient number, since it is larger than the sum of its proper divisors (1).

173135693 is an equidigital number, since it uses as much as digits as its factorization.

173135693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51030, while the sum is 38.

The square root of 173135693 is about 13158.1037007617. The cubic root of 173135693 is about 557.3511093343.

The spelling of 173135693 in words is "one hundred seventy-three million, one hundred thirty-five thousand, six hundred ninety-three".