7172165 has 32 divisors (see below), whose sum is σ = 11563776. Its totient is φ = 4124160.

The previous prime is 7172131. The next prime is 7172167. The reversal of 7172165 is 5612717.

It is not a de Polignac number, because 7172165 - 2¹² = 7168069 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7172167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4289 + ... + 5721.

It is an arithmetic number, because the mean of its divisors is an integer number (361368).

Almost surely, 2^7172165 is an apocalyptic number.

It is an amenable number.

7172165 is a deficient number, since it is larger than the sum of its proper divisors (4391611).

7172165 is a wasteful number, since it uses less digits than its factorization.

7172165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469.

The product of its digits is 2940, while the sum is 29.

The square root of 7172165 is about 2678.0898043195. The cubic root of 7172165 is about 192.8487185555.

It can be divided in two parts, 7172 and 165, that added together give a palindrome (7337).

The spelling of 7172165 in words is "seven million, one hundred seventy-two thousand, one hundred sixty-five".