1089375 has 40 divisors (see below), whose sum is σ = 2099328. Its totient is φ = 492000.

The previous prime is 1089359. The next prime is 1089383. The reversal of 1089375 is 5739801.

It is not a de Polignac number, because 1089375 - 2⁴ = 1089359 is a prime.

1089375 is a lucky number.

It is a congruent 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 39 ways as a sum of consecutive naturals, for example, 13084 + ... + 13166.

2^1089375 is an apocalyptic number.

1089375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1089375 is a deficient number, since it is larger than the sum of its proper divisors (1009953).

1089375 is an frugal number, since it uses more digits than its factorization.

1089375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 1089375 is about 1043.7312872574. The cubic root of 1089375 is about 102.8945727422.

The spelling of 1089375 in words is "one million, eighty-nine thousand, three hundred seventy-five".