1276526 has 4 divisors (see below), whose sum is σ = 1914792. Its totient is φ = 638262.

The previous prime is 1276511. The next prime is 1276529. The reversal of 1276526 is 6256721.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1276529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 319130 + ... + 319133.

It is an arithmetic number, because the mean of its divisors is an integer number (478698).

2^1276526 is an apocalyptic number.

1276526 is a deficient number, since it is larger than the sum of its proper divisors (638266).

1276526 is an equidigital number, since it uses as much as digits as its factorization.

1276526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638265.

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

The square root of 1276526 is about 1129.8345011549. The cubic root of 1276526 is about 108.4783876764.

It can be divided in two parts, 1276 and 526, that multiplied together give a palindrome (671176).

The spelling of 1276526 in words is "one million, two hundred seventy-six thousand, five hundred twenty-six".