100204543 has 2 divisors, whose sum is σ = 100204544. Its totient is φ = 100204542.

The previous prime is 100204529. The next prime is 100204553. The reversal of 100204543 is 345402001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100204543 - 2¹⁷ = 100073471 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100204543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100204513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50102271 + 50102272.

It is an arithmetic number, because the mean of its divisors is an integer number (50102272).

Almost surely, 2^100204543 is an apocalyptic number.

100204543 is a deficient number, since it is larger than the sum of its proper divisors (1).

100204543 is an equidigital number, since it uses as much as digits as its factorization.

100204543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 100204543 is about 10010.2219256118. The cubic root of 100204543 is about 464.4751360032.

Adding to 100204543 its reverse (345402001), we get a palindrome (445606544).

The spelling of 100204543 in words is "one hundred million, two hundred four thousand, five hundred forty-three".