1272266 has 4 divisors (see below), whose sum is σ = 1908402. Its totient is φ = 636132.

The previous prime is 1272253. The next prime is 1272269. The reversal of 1272266 is 6622721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1256641 + 15625 = 1121^2 + 125^2 .

It is not an unprimeable number, because it can be changed into a prime (1272269) 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 as a sum of consecutive naturals, namely, 318065 + ... + 318068.

2^1272266 is an apocalyptic number.

1272266 is a deficient number, since it is larger than the sum of its proper divisors (636136).

1272266 is an equidigital number, since it uses as much as digits as its factorization.

1272266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636135.

The product of its digits is 2016, while the sum is 26.

The square root of 1272266 is about 1127.9476938227. The cubic root of 1272266 is about 108.3575824744.

Adding to 1272266 its reverse (6622721), we get a palindrome (7894987).

It can be divided in two parts, 127 and 2266, that multiplied together give a palindrome (287782).

The spelling of 1272266 in words is "one million, two hundred seventy-two thousand, two hundred sixty-six".