1268055 has 40 divisors (see below), whose sum is σ = 2369664. Its totient is φ = 648000.

The previous prime is 1268053. The next prime is 1268077. The reversal of 1268055 is 5508621.

It is not a de Polignac number, because 1268055 - 2¹ = 1268053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

1268055 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268051) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12505 + ... + 12605.

2^1268055 is an apocalyptic number.

1268055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1268055 is a deficient number, since it is larger than the sum of its proper divisors (1101609).

1268055 is a wasteful number, since it uses less digits than its factorization.

1268055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 1268055 is about 1126.0794820971. The cubic root of 1268055 is about 108.2379014937.

Subtracting from 1268055 its sum of digits (27), we obtain a triangular number (1268028 = T₁₅₉₂).

The spelling of 1268055 in words is "one million, two hundred sixty-eight thousand, fifty-five".