173543473488101 has 4 divisors (see below), whose sum is σ = 173584393905804. Its totient is φ = 173502553070400.

The previous prime is 173543473488089. The next prime is 173543473488137. The reversal of 173543473488101 is 101884374345371.

It is a happy number.

It is a Cunningham number, because it is equal to 13173590²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 170934444156100 + 2609029332001 = 13074190^2 + 1615249^2 .

It is a cyclic number.

It is not a de Polignac number, because 173543473488101 - 2²⁶ = 173543406379237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173543473488191) 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, 20460202490 + ... + 20460210971.

It is an arithmetic number, because the mean of its divisors is an integer number (43396098476451).

Almost surely, 2^{173543473488101} is an apocalyptic number.

It is an amenable number.

173543473488101 is a deficient number, since it is larger than the sum of its proper divisors (40920417703).

173543473488101 is an equidigital number, since it uses as much as digits as its factorization.

173543473488101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40920417702.

The product of its (nonzero) digits is 27095040, while the sum is 59.

The spelling of 173543473488101 in words is "one hundred seventy-three trillion, five hundred forty-three billion, four hundred seventy-three million, four hundred eighty-eight thousand, one hundred one".