1089275 has 24 divisors (see below), whose sum is σ = 1566864. Its totient is φ = 742400.

The previous prime is 1089259. The next prime is 1089299. The reversal of 1089275 is 5729801.

It is not a de Polignac number, because 1089275 - 2⁴ = 1089259 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 4559 + ... + 4791.

It is an arithmetic number, because the mean of its divisors is an integer number (65286).

2^1089275 is an apocalyptic number.

1089275 is a deficient number, since it is larger than the sum of its proper divisors (477589).

1089275 is a wasteful number, since it uses less digits than its factorization.

1089275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 1089275 is about 1043.6833811075. The cubic root of 1089275 is about 102.8914242175.

The spelling of 1089275 in words is "one million, eighty-nine thousand, two hundred seventy-five".