1275312 has 30 divisors (see below), whose sum is σ = 3314892. Its totient is φ = 422496.

The previous prime is 1275293. The next prime is 1275319. The reversal of 1275312 is 2135721.

1275312 is an esthetic number in base 3, because in such base its adjacent digits differ by 1.

It is not an unprimeable number, because it can be changed into a prime (1275319) 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, 7743 + ... + 7905.

2^1275312 is an apocalyptic number.

1275312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1275312 is an abundant number, since it is smaller than the sum of its proper divisors (2039580).

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

1275312 is an equidigital number, since it uses as much as digits as its factorization.

1275312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337 (or 168 counting only the distinct ones).

The product of its digits is 420, while the sum is 21.

The square root of 1275312 is about 1129.2971265349. The cubic root of 1275312 is about 108.4439884470.

The spelling of 1275312 in words is "one million, two hundred seventy-five thousand, three hundred twelve".