173290161 has 8 divisors (see below), whose sum is σ = 252058464. Its totient is φ = 105024320.

The previous prime is 173290153. The next prime is 173290181. The reversal of 173290161 is 161092371.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 173290161 - 2³ = 173290153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (173290111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2625576 + ... + 2625641.

It is an arithmetic number, because the mean of its divisors is an integer number (31507308).

Almost surely, 2^173290161 is an apocalyptic number.

173290161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

173290161 is a deficient number, since it is larger than the sum of its proper divisors (78768303).

173290161 is a wasteful number, since it uses less digits than its factorization.

173290161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5251231.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 173290161 is about 13163.9720829239. The cubic root of 173290161 is about 557.5168123520.

The spelling of 173290161 in words is "one hundred seventy-three million, two hundred ninety thousand, one hundred sixty-one".