1425225 has 24 divisors (see below), whose sum is σ = 2436352. Its totient is φ = 734400.

The previous prime is 1425217. The next prime is 1425227. The reversal of 1425225 is 5225241.

It is a happy number.

It is not a de Polignac number, because 1425225 - 2³ = 1425217 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1425227) 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 23 ways as a sum of consecutive naturals, for example, 2019 + ... + 2631.

2^1425225 is an apocalyptic number.

1425225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1425225 is a deficient number, since it is larger than the sum of its proper divisors (1011127).

1425225 is a wasteful number, since it uses less digits than its factorization.

1425225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657 (or 652 counting only the distinct ones).

The product of its digits is 800, while the sum is 21.

The square root of 1425225 is about 1193.8278770409. The cubic root of 1425225 is about 112.5367780988.

The spelling of 1425225 in words is "one million, four hundred twenty-five thousand, two hundred twenty-five".