1082591 has 6 divisors (see below), whose sum is σ = 1104792. Its totient is φ = 1060820.

The previous prime is 1082581. The next prime is 1082593. The reversal of 1082591 is 1952801.

It is a happy number.

It is not a de Polignac number, because 1082591 - 2⁶ = 1082527 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1082591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1082593) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3326 + ... + 3636.

It is an arithmetic number, because the mean of its divisors is an integer number (184132).

2^1082591 is an apocalyptic number.

1082591 is a deficient number, since it is larger than the sum of its proper divisors (22201).

1082591 is an frugal number, since it uses more digits than its factorization.

1082591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 1082591 is about 1040.4763332244. The cubic root of 1082591 is about 102.6805384547.

The spelling of 1082591 in words is "one million, eighty-two thousand, five hundred ninety-one".