1002225 has 48 divisors (see below), whose sum is σ = 1999872. Its totient is φ = 432960.

The previous prime is 1002191. The next prime is 1002227. The reversal of 1002225 is 5222001.

It is not a de Polignac number, because 1002225 - 2⁹ = 1001713 is a prime.

1002225 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1002225.

It is not an unprimeable number, because it can be changed into a prime (1002227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12034 + ... + 12116.

It is an arithmetic number, because the mean of its divisors is an integer number (41664).

2^1002225 is an apocalyptic number.

1002225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1002225 is a deficient number, since it is larger than the sum of its proper divisors (997647).

1002225 is a wasteful number, since it uses less digits than its factorization.

1002225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 1002225 is about 1001.1118818594. Note that the first 3 decimals coincide. The cubic root of 1002225 is about 100.0741117276.

Adding to 1002225 its reverse (5222001), we get a palindrome (6224226).

The spelling of 1002225 in words is "one million, two thousand, two hundred twenty-five".