1273256 has 8 divisors (see below), whose sum is σ = 2387370. Its totient is φ = 636624.

The previous prime is 1273241. The next prime is 1273267. The reversal of 1273256 is 6523721.

It can be written as a sum of positive squares in only one way, i.e., 1136356 + 136900 = 1066^2 + 370^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 1 + 2⁴ + 7⁷ + 3¹⁰ + 2⁴ + 5⁸ + 6 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 79571 + ... + 79586.

2^1273256 is an apocalyptic number.

It is an amenable number.

1273256 is a deficient number, since it is larger than the sum of its proper divisors (1114114).

1273256 is a wasteful number, since it uses less digits than its factorization.

1273256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159163 (or 159159 counting only the distinct ones).

The product of its digits is 2520, while the sum is 26.

The square root of 1273256 is about 1128.3864586213. The cubic root of 1273256 is about 108.3856809470.

Adding to 1273256 its reverse (6523721), we get a palindrome (7796977).

The spelling of 1273256 in words is "one million, two hundred seventy-three thousand, two hundred fifty-six".