313173425161 has 9 divisors (see below), whose sum is σ = 314028048999. Its totient is φ = 312321125424.

The previous prime is 313173425137. The next prime is 313173425189. The reversal of 313173425161 is 161524371313.

The square root of 313173425161 is 559619.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 9069705225 + 304103719936 = 95235^2 + 551456^2 .

It is not a de Polignac number, because 313173425161 - 2⁵ = 313173425129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313173425161.

It is not an unprimeable number, because it can be changed into a prime (313173485161) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 345284470 + ... + 345285376.

Almost surely, 2^313173425161 is an apocalyptic number.

313173425161 is the 559619-th square number.

313173425161 is the 279810-th centered octagonal number.

It is an amenable number.

313173425161 is a deficient number, since it is larger than the sum of its proper divisors (854623838).

313173425161 is an frugal number, since it uses more digits than its factorization.

313173425161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3048 (or 1524 counting only the distinct ones).

The product of its digits is 45360, while the sum is 37.

Adding to 313173425161 its reverse (161524371313), we get a palindrome (474697796474).

The spelling of 313173425161 in words is "three hundred thirteen billion, one hundred seventy-three million, four hundred twenty-five thousand, one hundred sixty-one".