7156222 has 16 divisors (see below), whose sum is σ = 11076912. Its totient is φ = 3465280.

The previous prime is 7156213. The next prime is 7156229. The reversal of 7156222 is 2226517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7156229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15933 + ... + 16375.

It is an arithmetic number, because the mean of its divisors is an integer number (692307).

Almost surely, 2^7156222 is an apocalyptic number.

7156222 is a deficient number, since it is larger than the sum of its proper divisors (3920690).

7156222 is a wasteful number, since it uses less digits than its factorization.

7156222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683.

The product of its digits is 1680, while the sum is 25.

The square root of 7156222 is about 2675.1115864577. Note that the first 3 decimals coincide. The cubic root of 7156222 is about 192.7057181225.

The spelling of 7156222 in words is "seven million, one hundred fifty-six thousand, two hundred twenty-two".