173117641 has 2 divisors, whose sum is σ = 173117642. Its totient is φ = 173117640.

The previous prime is 173117627. The next prime is 173117653. The reversal of 173117641 is 146711371.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91757241 + 81360400 = 9579^2 + 9020^2 .

It is an emirp because it is prime and its reverse (146711371) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 173117641 - 2¹³ = 173109449 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (173147641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86558820 + 86558821.

It is an arithmetic number, because the mean of its divisors is an integer number (86558821).

Almost surely, 2^173117641 is an apocalyptic number.

It is an amenable number.

173117641 is a deficient number, since it is larger than the sum of its proper divisors (1).

173117641 is an equidigital number, since it uses as much as digits as its factorization.

173117641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3528, while the sum is 31.

The square root of 173117641 is about 13157.4177177743. The cubic root of 173117641 is about 557.3317379157.

The spelling of 173117641 in words is "one hundred seventy-three million, one hundred seventeen thousand, six hundred forty-one".