1225826 has 8 divisors (see below), whose sum is σ = 2101440. Its totient is φ = 525348.

The previous prime is 1225817. The next prime is 1225849. The reversal of 1225826 is 6285221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 1 + 2¹¹ + 2¹⁸ + 5⁸ + 8² + 2¹⁹ + 6⁶ .

It is a junction number, because it is equal to n+sod(n) for n = 1225795 and 1225804.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43766 + ... + 43793.

It is an arithmetic number, because the mean of its divisors is an integer number (262680).

2^1225826 is an apocalyptic number.

1225826 is a deficient number, since it is larger than the sum of its proper divisors (875614).

1225826 is an equidigital number, since it uses as much as digits as its factorization.

1225826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87568.

The product of its digits is 1920, while the sum is 26.

The square root of 1225826 is about 1107.1702669418. The cubic root of 1225826 is about 107.0227918956.

The spelling of 1225826 in words is "one million, two hundred twenty-five thousand, eight hundred twenty-six".