1275856 has 20 divisors (see below), whose sum is σ = 2580192. Its totient is φ = 610016.

The previous prime is 1275851. The next prime is 1275863. The reversal of 1275856 is 6585721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1366 + ... + 2101.

2^1275856 is an apocalyptic number.

1275856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1275856 is an abundant number, since it is smaller than the sum of its proper divisors (1304336).

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

1275856 is a wasteful number, since it uses less digits than its factorization.

1275856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3498 (or 3492 counting only the distinct ones).

The product of its digits is 16800, while the sum is 34.

The square root of 1275856 is about 1129.5379586362. The cubic root of 1275856 is about 108.4594056269.

The spelling of 1275856 in words is "one million, two hundred seventy-five thousand, eight hundred fifty-six".