173000545220 has 24 divisors (see below), whose sum is σ = 384671801304. Its totient is φ = 65129616896.

The previous prime is 173000545181. The next prime is 173000545231. The reversal of 173000545220 is 22545000371.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 66912238276 + 106088306944 = 258674^2 + 325712^2 .

It is an unprimeable number.

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, 254412227 + ... + 254412906.

It is an arithmetic number, because the mean of its divisors is an integer number (16027991721).

Almost surely, 2^173000545220 is an apocalyptic number.

173000545220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

173000545220 is an abundant number, since it is smaller than the sum of its proper divisors (211671256084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

173000545220 is a wasteful number, since it uses less digits than its factorization.

173000545220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508825159 (or 508825157 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

Adding to 173000545220 its reverse (22545000371), we get a palindrome (195545545591).

The spelling of 173000545220 in words is "one hundred seventy-three billion, five hundred forty-five thousand, two hundred twenty".