173160121 has 2 divisors, whose sum is σ = 173160122. Its totient is φ = 173160120.

The previous prime is 173160109. The next prime is 173160137. The reversal of 173160121 is 121061371.

173160121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130074025 + 43086096 = 11405^2 + 6564^2 .

It is an emirp because it is prime and its reverse (121061371) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 173160121 - 2¹³ = 173151929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 173160092 and 173160101.

It is not a weakly prime, because it can be changed into another prime (173160101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86580060 + 86580061.

It is an arithmetic number, because the mean of its divisors is an integer number (86580061).

Almost surely, 2^173160121 is an apocalyptic number.

It is an amenable number.

173160121 is a deficient number, since it is larger than the sum of its proper divisors (1).

173160121 is an equidigital number, since it uses as much as digits as its factorization.

173160121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 173160121 is about 13159.0319172802. The cubic root of 173160121 is about 557.3773206302.

The spelling of 173160121 in words is "one hundred seventy-three million, one hundred sixty thousand, one hundred twenty-one".