1276255 has 4 divisors (see below), whose sum is σ = 1531512. Its totient is φ = 1021000.

The previous prime is 1276243. The next prime is 1276271. The reversal of 1276255 is 5526721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5526721 = 83 ⋅66587.

It is a de Polignac number, because none of the positive numbers 2^k-1276255 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127621 + ... + 127630.

It is an arithmetic number, because the mean of its divisors is an integer number (382878).

2^1276255 is an apocalyptic number.

1276255 is a deficient number, since it is larger than the sum of its proper divisors (255257).

1276255 is an equidigital number, since it uses as much as digits as its factorization.

1276255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255256.

The product of its digits is 4200, while the sum is 28.

The square root of 1276255 is about 1129.7145657200. The cubic root of 1276255 is about 108.4707106625.

It can be divided in two parts, 12 and 76255, that added together give a palindrome (76267).

The spelling of 1276255 in words is "one million, two hundred seventy-six thousand, two hundred fifty-five".