7224105 has 32 divisors (see below), whose sum is σ = 13353984. Its totient is φ = 3266496.

The previous prime is 7224101. The next prime is 7224109. The reversal of 7224105 is 5014227.

It is an interprime number because it is at equal distance from previous prime (7224101) and next prime (7224109).

It is not a de Polignac number, because 7224105 - 2² = 7224101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

7224105 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7224101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10914 + ... + 11556.

It is an arithmetic number, because the mean of its divisors is an integer number (417312).

Almost surely, 2^7224105 is an apocalyptic number.

It is an amenable number.

7224105 is a deficient number, since it is larger than the sum of its proper divisors (6129879).

7224105 is a wasteful number, since it uses less digits than its factorization.

7224105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 7224105 is about 2687.7695213690. The cubic root of 7224105 is about 193.3131287513.

The spelling of 7224105 in words is "seven million, two hundred twenty-four thousand, one hundred five".