173428195 has 4 divisors (see below), whose sum is σ = 208113840. Its totient is φ = 138742552.

The previous prime is 173428193. The next prime is 173428231. The reversal of 173428195 is 591824371.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 591824371 = 859 ⋅688969.

It is a cyclic number.

It is not a de Polignac number, because 173428195 - 2¹ = 173428193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (173428193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17342815 + ... + 17342824.

It is an arithmetic number, because the mean of its divisors is an integer number (52028460).

Almost surely, 2^173428195 is an apocalyptic number.

173428195 is a deficient number, since it is larger than the sum of its proper divisors (34685645).

173428195 is an equidigital number, since it uses as much as digits as its factorization.

173428195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34685644.

The product of its digits is 60480, while the sum is 40.

The square root of 173428195 is about 13169.2139097214. The cubic root of 173428195 is about 557.6648027729.

It can be divided in two parts, 1734 and 28195, that added together give a square (29929 = 173²).

The spelling of 173428195 in words is "one hundred seventy-three million, four hundred twenty-eight thousand, one hundred ninety-five".