1275825 has 12 divisors (see below), whose sum is σ = 2109488. Its totient is φ = 680400.

The previous prime is 1275823. The next prime is 1275829. The reversal of 1275825 is 5285721.

It is not a de Polignac number, because 1275825 - 2¹ = 1275823 is a prime.

It is a Duffinian number.

It is a Curzon number.

1275825 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1275792 and 1275801.

It is not an unprimeable number, because it can be changed into a prime (1275823) 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 11 ways as a sum of consecutive naturals, for example, 8431 + ... + 8580.

2^1275825 is an apocalyptic number.

1275825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1275825 is a deficient number, since it is larger than the sum of its proper divisors (833663).

1275825 is a wasteful number, since it uses less digits than its factorization.

1275825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17024 (or 17019 counting only the distinct ones).

The product of its digits is 5600, while the sum is 30.

The square root of 1275825 is about 1129.5242361278. The cubic root of 1275825 is about 108.4585271921.

The spelling of 1275825 in words is "one million, two hundred seventy-five thousand, eight hundred twenty-five".