3172165 has 16 divisors (see below), whose sum is σ = 3991680. Its totient is φ = 2416960.

The previous prime is 3172163. The next prime is 3172189. The reversal of 3172165 is 5612713.

It is not a de Polignac number, because 3172165 - 2¹ = 3172163 is a prime.

3172165 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3172163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18912 + ... + 19078.

It is an arithmetic number, because the mean of its divisors is an integer number (249480).

Almost surely, 2^3172165 is an apocalyptic number.

It is an amenable number.

3172165 is a deficient number, since it is larger than the sum of its proper divisors (819515).

3172165 is a wasteful number, since it uses less digits than its factorization.

3172165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332.

The product of its digits is 1260, while the sum is 25.

The square root of 3172165 is about 1781.0572702752. The cubic root of 3172165 is about 146.9327441576.

Adding to 3172165 its reverse (5612713), we get a palindrome (8784878).

The spelling of 3172165 in words is "three million, one hundred seventy-two thousand, one hundred sixty-five".