1275426 has 20 divisors (see below), whose sum is σ = 2858262. Its totient is φ = 425088.

The previous prime is 1275401. The next prime is 1275437. The reversal of 1275426 is 6245721.

It can be written as a sum of positive squares in only one way, i.e., 1265625 + 9801 = 1125^2 + 99^2 .

It is a super-2 number, since 2×1275426² = 3253422962952, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1275426.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3775 + ... + 4098.

2^1275426 is an apocalyptic number.

1275426 is an abundant number, since it is smaller than the sum of its proper divisors (1582836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1275426 is an equidigital number, since it uses as much as digits as its factorization.

1275426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7887 (or 7878 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 1275426 is about 1129.3475992802. The cubic root of 1275426 is about 108.4472196162.

The spelling of 1275426 in words is "one million, two hundred seventy-five thousand, four hundred twenty-six".