7225171 has 4 divisors (see below), whose sum is σ = 7230600. Its totient is φ = 7219744.

The previous prime is 7225133. The next prime is 7225177. The reversal of 7225171 is 1715227.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 7225171 - 2¹¹ = 7223123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7225177) 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, 795 + ... + 3883.

It is an arithmetic number, because the mean of its divisors is an integer number (1807650).

Almost surely, 2^7225171 is an apocalyptic number.

7225171 is a deficient number, since it is larger than the sum of its proper divisors (5429).

7225171 is a wasteful number, since it uses less digits than its factorization.

7225171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5428.

The product of its digits is 980, while the sum is 25.

The square root of 7225171 is about 2687.9678197478. The cubic root of 7225171 is about 193.3226368108.

It can be divided in two parts, 7225 and 171, that added together give a square (7396 = 86²).

The spelling of 7225171 in words is "seven million, two hundred twenty-five thousand, one hundred seventy-one".