3172443161 has 4 divisors (see below), whose sum is σ = 3184236900. Its totient is φ = 3160649424.

The previous prime is 3172443149. The next prime is 3172443163. The reversal of 3172443161 is 1613442713.

3172443161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1613442713 = 283 ⋅5701211.

It can be written as a sum of positive squares in 2 ways, for example, as 705433600 + 2467009561 = 26560^2 + 49669^2 .

It is a cyclic number.

It is not a de Polignac number, because 3172443161 - 2¹⁰ = 3172442137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3172443163) 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, 5896466 + ... + 5897003.

It is an arithmetic number, because the mean of its divisors is an integer number (796059225).

Almost surely, 2^3172443161 is an apocalyptic number.

It is an amenable number.

3172443161 is a deficient number, since it is larger than the sum of its proper divisors (11793739).

3172443161 is a wasteful number, since it uses less digits than its factorization.

3172443161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11793738.

The product of its digits is 12096, while the sum is 32.

The square root of 3172443161 is about 56324.4455010433. The cubic root of 3172443161 is about 1469.3703878129.

Adding to 3172443161 its reverse (1613442713), we get a palindrome (4785885874).

The spelling of 3172443161 in words is "three billion, one hundred seventy-two million, four hundred forty-three thousand, one hundred sixty-one".