173530847161 has 4 divisors (see below), whose sum is σ = 198320968192. Its totient is φ = 148740726132.

The previous prime is 173530847159. The next prime is 173530847173. The reversal of 173530847161 is 161748035371.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 173530847161 - 2¹ = 173530847159 is a prime.

It is a super-2 number, since 2×173530847161² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (173530847261) 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, 12395060505 + ... + 12395060518.

It is an arithmetic number, because the mean of its divisors is an integer number (49580242048).

Almost surely, 2^173530847161 is an apocalyptic number.

It is an amenable number.

173530847161 is a deficient number, since it is larger than the sum of its proper divisors (24790121031).

173530847161 is an equidigital number, since it uses as much as digits as its factorization.

173530847161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24790121030.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 173530847161 in words is "one hundred seventy-three billion, five hundred thirty million, eight hundred forty-seven thousand, one hundred sixty-one".