1082109 has 12 divisors (see below), whose sum is σ = 1656224. Its totient is φ = 615624.

The previous prime is 1082099. The next prime is 1082129. The reversal of 1082109 is 9012801.

It is not a de Polignac number, because 1082109 - 2⁴ = 1082093 is a prime.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1082129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4654 + ... + 4880.

2^1082109 is an apocalyptic number.

It is an amenable number.

1082109 is a deficient number, since it is larger than the sum of its proper divisors (574115).

1082109 is an frugal number, since it uses more digits than its factorization.

1082109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 1082109 is about 1040.2446827550. The cubic root of 1082109 is about 102.6652974368.

Multiplying 1082109 by its sum of digits (21), we get a square (22724289 = 4767²).

1082109 divided by its sum of digits (21) gives a square (51529 = 227²).

The spelling of 1082109 in words is "one million, eighty-two thousand, one hundred nine".