7227225 has 60 divisors (see below), whose sum is σ = 13863696. Its totient is φ = 3719520.

The previous prime is 7227211. The next prime is 7227229. The reversal of 7227225 is 5227227.

It is a happy number.

It is not a de Polignac number, because 7227225 - 2¹⁰ = 7226201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (7227229) 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 59 ways as a sum of consecutive naturals, for example, 87034 + ... + 87116.

Almost surely, 2^7227225 is an apocalyptic number.

7227225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7227225 is a deficient number, since it is larger than the sum of its proper divisors (6636471).

7227225 is a wasteful number, since it uses less digits than its factorization.

7227225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 134 counting only the distinct ones).

The product of its digits is 3920, while the sum is 27.

The square root of 7227225 is about 2688.3498656239. The cubic root of 7227225 is about 193.3409545813.

The spelling of 7227225 in words is "seven million, two hundred twenty-seven thousand, two hundred twenty-five".