1268535 has 16 divisors (see below), whose sum is σ = 2136960. Its totient is φ = 640800.

The previous prime is 1268479. The next prime is 1268537. The reversal of 1268535 is 5358621.

It is not a de Polignac number, because 1268535 - 2⁸ = 1268279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268537) 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 15 ways as a sum of consecutive naturals, for example, 1941 + ... + 2510.

It is an arithmetic number, because the mean of its divisors is an integer number (133560).

2^1268535 is an apocalyptic number.

1268535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1268535 is a deficient number, since it is larger than the sum of its proper divisors (868425).

1268535 is a wasteful number, since it uses less digits than its factorization.

1268535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4478.

The product of its digits is 7200, while the sum is 30.

The square root of 1268535 is about 1126.2925907596. The cubic root of 1268535 is about 108.2515569578.

It can be divided in two parts, 12685 and 35, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 1268535 in words is "one million, two hundred sixty-eight thousand, five hundred thirty-five".