1268635 has 8 divisors (see below), whose sum is σ = 1528416. Its totient is φ = 1010880.

The previous prime is 1268633. The next prime is 1268669. The reversal of 1268635 is 5368621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1268635 - 2¹ = 1268633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1268597 and 1268606.

It is not an unprimeable number, because it can be changed into a prime (1268633) 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 in 7 ways as a sum of consecutive naturals, for example, 2175 + ... + 2695.

It is an arithmetic number, because the mean of its divisors is an integer number (191052).

2^1268635 is an apocalyptic number.

1268635 is a deficient number, since it is larger than the sum of its proper divisors (259781).

1268635 is an equidigital number, since it uses as much as digits as its factorization.

1268635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013.

The product of its digits is 8640, while the sum is 31.

The square root of 1268635 is about 1126.3369833225. The cubic root of 1268635 is about 108.2544014126.

It can be divided in two parts, 12686 and 35, that added together give a palindrome (12721).

The spelling of 1268635 in words is "one million, two hundred sixty-eight thousand, six hundred thirty-five".