3171145 has 16 divisors (see below), whose sum is σ = 4032000. Its totient is φ = 2390400.

The previous prime is 3171143. The next prime is 3171187. The reversal of 3171145 is 5411713.

It is not a de Polignac number, because 3171145 - 2¹ = 3171143 is a prime.

It is a super-2 number, since 2×3171145² = 20112321222050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3171143) 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, 6106 + ... + 6604.

It is an arithmetic number, because the mean of its divisors is an integer number (252000).

Almost surely, 2^3171145 is an apocalyptic number.

It is an amenable number.

3171145 is a deficient number, since it is larger than the sum of its proper divisors (860855).

3171145 is a wasteful number, since it uses less digits than its factorization.

3171145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576.

The product of its digits is 420, while the sum is 22.

The square root of 3171145 is about 1780.7709004810. The cubic root of 3171145 is about 146.9169938772.

Adding to 3171145 its reverse (5411713), we get a palindrome (8582858).

The spelling of 3171145 in words is "three million, one hundred seventy-one thousand, one hundred forty-five".