173100989 has 2 divisors, whose sum is σ = 173100990. Its totient is φ = 173100988.

The previous prime is 173100973. The next prime is 173100997. The reversal of 173100989 is 989001371.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122832889 + 50268100 = 11083^2 + 7090^2 .

It is an emirp because it is prime and its reverse (989001371) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 173100989 - 2⁴ = 173100973 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (173100289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86550494 + 86550495.

It is an arithmetic number, because the mean of its divisors is an integer number (86550495).

Almost surely, 2^173100989 is an apocalyptic number.

It is an amenable number.

173100989 is a deficient number, since it is larger than the sum of its proper divisors (1).

173100989 is an equidigital number, since it uses as much as digits as its factorization.

173100989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 173100989 is about 13156.7849036153. The cubic root of 173100989 is about 557.3138676290.

The spelling of 173100989 in words is "one hundred seventy-three million, one hundred thousand, nine hundred eighty-nine".