1082561 has 4 divisors (see below), whose sum is σ = 1088724. Its totient is φ = 1076400.

The previous prime is 1082533. The next prime is 1082573. The reversal of 1082561 is 1652801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19600 + 1062961 = 140^2 + 1031^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1082561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1082531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2810 + ... + 3171.

It is an arithmetic number, because the mean of its divisors is an integer number (272181).

2^1082561 is an apocalyptic number.

It is an amenable number.

1082561 is a deficient number, since it is larger than the sum of its proper divisors (6163).

1082561 is an equidigital number, since it uses as much as digits as its factorization.

1082561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6162.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1082561 is about 1040.4619166505. The cubic root of 1082561 is about 102.6795899757.

The spelling of 1082561 in words is "one million, eighty-two thousand, five hundred sixty-one".