1882561 has 2 divisors, whose sum is σ = 1882562. Its totient is φ = 1882560.

The previous prime is 1882541. The next prime is 1882579. The reversal of 1882561 is 1652881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1311025 + 571536 = 1145^2 + 756^2 .

It is an emirp because it is prime and its reverse (1652881) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1882561 - 2¹¹ = 1880513 is a prime.

It is not a weakly prime, because it can be changed into another prime (1882541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 941280 + 941281.

It is an arithmetic number, because the mean of its divisors is an integer number (941281).

2^1882561 is an apocalyptic number.

It is an amenable number.

1882561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1882561 is an equidigital number, since it uses as much as digits as its factorization.

1882561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 31.

The square root of 1882561 is about 1372.0645028569. The cubic root of 1882561 is about 123.4761327883.

The spelling of 1882561 in words is "one million, eight hundred eighty-two thousand, five hundred sixty-one".