10820543 has 2 divisors, whose sum is σ = 10820544. Its totient is φ = 10820542.

The previous prime is 10820521. The next prime is 10820561. The reversal of 10820543 is 34502801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10820543 - 2¹⁴ = 10804159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10820503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5410271 + 5410272.

It is an arithmetic number, because the mean of its divisors is an integer number (5410272).

Almost surely, 2^10820543 is an apocalyptic number.

10820543 is a deficient number, since it is larger than the sum of its proper divisors (1).

10820543 is an equidigital number, since it uses as much as digits as its factorization.

10820543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 10820543 is about 3289.4593780742. The cubic root of 10820543 is about 221.1819512604.

The spelling of 10820543 in words is "ten million, eight hundred twenty thousand, five hundred forty-three".