1275568 has 30 divisors (see below), whose sum is σ = 2876676. Its totient is φ = 546336.

The previous prime is 1275563. The next prime is 1275569. The reversal of 1275568 is 8655721.

It is not an unprimeable number, because it can be changed into a prime (1275563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30 + ... + 1597.

2^1275568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1275568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1438338).

1275568 is an abundant number, since it is smaller than the sum of its proper divisors (1601108).

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

1275568 is a wasteful number, since it uses less digits than its factorization.

1275568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649 (or 1636 counting only the distinct ones).

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

The square root of 1275568 is about 1129.4104656855. The cubic root of 1275568 is about 108.4512441365.

The spelling of 1275568 in words is "one million, two hundred seventy-five thousand, five hundred sixty-eight".