1042225 has 12 divisors (see below), whose sum is σ = 1321344. Its totient is φ = 815120.

The previous prime is 1042211. The next prime is 1042241. The reversal of 1042225 is 5222401.

It is not a de Polignac number, because 1042225 - 2⁵ = 1042193 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1042199 and 1042208.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 732 + ... + 1618.

It is an arithmetic number, because the mean of its divisors is an integer number (110112).

2^1042225 is an apocalyptic number.

It is an amenable number.

1042225 is a deficient number, since it is larger than the sum of its proper divisors (279119).

1042225 is an equidigital number, since it uses as much as digits as its factorization.

1042225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944 (or 939 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 1042225 is about 1020.8942158716. The cubic root of 1042225 is about 101.3881414706.

Adding to 1042225 its reverse (5222401), we get a palindrome (6264626).

The spelling of 1042225 in words is "one million, forty-two thousand, two hundred twenty-five".