1275768 has 96 divisors (see below), whose sum is σ = 3931200. Its totient is φ = 370944.

The previous prime is 1275751. The next prime is 1275779. The reversal of 1275768 is 8675721.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 27121 + ... + 27167.

It is an arithmetic number, because the mean of its divisors is an integer number (40950).

2^1275768 is an apocalyptic number.

1275768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1275768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1965600).

1275768 is an abundant number, since it is smaller than the sum of its proper divisors (2655432).

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

1275768 is a wasteful number, since it uses less digits than its factorization.

1275768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 94 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 1275768 is about 1129.4990039836. The cubic root of 1275768 is about 108.4569119685.

The spelling of 1275768 in words is "one million, two hundred seventy-five thousand, seven hundred sixty-eight".