1081823 has 2 divisors, whose sum is σ = 1081824. Its totient is φ = 1081822.

The previous prime is 1081813. The next prime is 1081853. The reversal of 1081823 is 3281801.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1081823 - 2²⁰ = 33247 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1081813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540911 + 540912.

It is an arithmetic number, because the mean of its divisors is an integer number (540912).

2^1081823 is an apocalyptic number.

1081823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081823 is an equidigital number, since it uses as much as digits as its factorization.

1081823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 1081823 is about 1040.1072060129. The cubic root of 1081823 is about 102.6562518717.

The spelling of 1081823 in words is "one million, eighty-one thousand, eight hundred twenty-three".