1282825 has 18 divisors (see below), whose sum is σ = 1680014. Its totient is φ = 971520.

The previous prime is 1282817. The next prime is 1282867. The reversal of 1282825 is 5282821.

It can be written as a sum of positive squares in 3 ways, for example, as 64009 + 1218816 = 253^2 + 1104^2 .

It is not a de Polignac number, because 1282825 - 2³ = 1282817 is a prime.

It is a super-3 number, since 3×1282825³ = 6333204324435796875, which contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1282793 and 1282802.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13177 + ... + 13273.

2^1282825 is an apocalyptic number.

It is an amenable number.

1282825 is a deficient number, since it is larger than the sum of its proper divisors (397189).

1282825 is an equidigital number, since it uses as much as digits as its factorization.

1282825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 125 counting only the distinct ones).

The product of its digits is 2560, while the sum is 28.

The square root of 1282825 is about 1132.6186472066. The cubic root of 1282825 is about 108.6565233652.

The spelling of 1282825 in words is "one million, two hundred eighty-two thousand, eight hundred twenty-five".