1288275 has 24 divisors (see below), whose sum is σ = 2165040. Its totient is φ = 675840.

The previous prime is 1288249. The next prime is 1288291. The reversal of 1288275 is 5728821.

It is not a de Polignac number, because 1288275 - 2¹¹ = 1286227 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6579 + ... + 6771.

It is an arithmetic number, because the mean of its divisors is an integer number (90210).

2^1288275 is an apocalyptic number.

1288275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1288275 is a deficient number, since it is larger than the sum of its proper divisors (876765).

1288275 is a wasteful number, since it uses less digits than its factorization.

1288275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 290 counting only the distinct ones).

The product of its digits is 8960, while the sum is 33.

The square root of 1288275 is about 1135.0220262180. The cubic root of 1288275 is about 108.8101794019.

The spelling of 1288275 in words is "one million, two hundred eighty-eight thousand, two hundred seventy-five".