173238265 has 8 divisors (see below), whose sum is σ = 208133640. Its totient is φ = 138425472.

The previous prime is 173238259. The next prime is 173238269. The reversal of 173238265 is 562832371.

It can be written as a sum of positive squares in 4 ways, for example, as 88303609 + 84934656 = 9397^2 + 9216^2 .

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 173238265 - 2¹⁹ = 172713977 is a prime.

It is a super-2 number, since 2×173238265² = 60022992920420450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (173238269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15930 + ... + 24499.

It is an arithmetic number, because the mean of its divisors is an integer number (26016705).

Almost surely, 2^173238265 is an apocalyptic number.

It is an amenable number.

173238265 is a deficient number, since it is larger than the sum of its proper divisors (34895375).

173238265 is an equidigital number, since it uses as much as digits as its factorization.

173238265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41291.

The product of its digits is 60480, while the sum is 37.

The square root of 173238265 is about 13162.0007977511. Note that the first 3 decimals coincide. The cubic root of 173238265 is about 557.4611527557.

The spelling of 173238265 in words is "one hundred seventy-three million, two hundred thirty-eight thousand, two hundred sixty-five".