173385197 has 2 divisors, whose sum is σ = 173385198. Its totient is φ = 173385196.

The previous prime is 173385169. The next prime is 173385323. The reversal of 173385197 is 791583371.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168844036 + 4541161 = 12994^2 + 2131^2 .

It is an emirp because it is prime and its reverse (791583371) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 173385197 - 2¹⁴ = 173368813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (173385167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86692598 + 86692599.

It is an arithmetic number, because the mean of its divisors is an integer number (86692599).

Almost surely, 2^173385197 is an apocalyptic number.

It is an amenable number.

173385197 is a deficient number, since it is larger than the sum of its proper divisors (1).

173385197 is an equidigital number, since it uses as much as digits as its factorization.

173385197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 44.

The square root of 173385197 is about 13167.5812889080. The cubic root of 173385197 is about 557.6187117415.

The spelling of 173385197 in words is "one hundred seventy-three million, three hundred eighty-five thousand, one hundred ninety-seven".