1276265 has 4 divisors (see below), whose sum is σ = 1531524. Its totient is φ = 1021008.

The previous prime is 1276243. The next prime is 1276271. The reversal of 1276265 is 5626721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5626721 = 2137 ⋅2633.

It can be written as a sum of positive squares in 2 ways, for example, as 896809 + 379456 = 947^2 + 616^2 .

It is a cyclic number.

It is not a de Polignac number, because 1276265 - 2¹² = 1272169 is a prime.

It is a Duffinian number.

It is a Curzon 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, 127622 + ... + 127631.

It is an arithmetic number, because the mean of its divisors is an integer number (382881).

2^1276265 is an apocalyptic number.

It is an amenable number.

1276265 is a deficient number, since it is larger than the sum of its proper divisors (255259).

1276265 is an equidigital number, since it uses as much as digits as its factorization.

1276265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255258.

The product of its digits is 5040, while the sum is 29.

The square root of 1276265 is about 1129.7189916081. The cubic root of 1276265 is about 108.4709939665.

The spelling of 1276265 in words is "one million, two hundred seventy-six thousand, two hundred sixty-five".