10823581 has 2 divisors, whose sum is σ = 10823582. Its totient is φ = 10823580.

The previous prime is 10823569. The next prime is 10823627. The reversal of 10823581 is 18532801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10621081 + 202500 = 3259^2 + 450^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10823581 is a prime.

It is a super-2 number, since 2×10823581² = 234299811327122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10823531) by changing a digit.

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 as a sum of consecutive naturals, namely, 5411790 + 5411791.

It is an arithmetic number, because the mean of its divisors is an integer number (5411791).

Almost surely, 2^10823581 is an apocalyptic number.

It is an amenable number.

10823581 is a deficient number, since it is larger than the sum of its proper divisors (1).

10823581 is an equidigital number, since it uses as much as digits as its factorization.

10823581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 10823581 is about 3289.9211236745. The cubic root of 10823581 is about 221.2026491709.

The spelling of 10823581 in words is "ten million, eight hundred twenty-three thousand, five hundred eighty-one".