173312145308017 has 4 divisors (see below), whose sum is σ = 173784385486336. Its totient is φ = 172839905129700.

The previous prime is 173312145307979. The next prime is 173312145308063. The reversal of 173312145308017 is 710803541213371.

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 a de Polignac number, because none of the positive numbers 2^k-173312145308017 is a prime.

It is a super-2 number, since 2×173312145308017² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (173312145308077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236120088609 + ... + 236120089342.

It is an arithmetic number, because the mean of its divisors is an integer number (43446096371584).

Almost surely, 2^{173312145308017} is an apocalyptic number.

It is an amenable number.

173312145308017 is a deficient number, since it is larger than the sum of its proper divisors (472240178319).

173312145308017 is an equidigital number, since it uses as much as digits as its factorization.

173312145308017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472240178318.

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

The spelling of 173312145308017 in words is "one hundred seventy-three trillion, three hundred twelve billion, one hundred forty-five million, three hundred eight thousand, seventeen".