100235543 has 2 divisors, whose sum is σ = 100235544. Its totient is φ = 100235542.

The previous prime is 100235521. The next prime is 100235549. The reversal of 100235543 is 345532001.

It is a strong prime.

It is an emirp because it is prime and its reverse (345532001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100235543 - 2⁸ = 100235287 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100235549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50117771 + 50117772.

It is an arithmetic number, because the mean of its divisors is an integer number (50117772).

Almost surely, 2^100235543 is an apocalyptic number.

100235543 is a deficient number, since it is larger than the sum of its proper divisors (1).

100235543 is an equidigital number, since it uses as much as digits as its factorization.

100235543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 100235543 is about 10011.7702230924. The cubic root of 100235543 is about 464.5230288572.

Adding to 100235543 its reverse (345532001), we get a palindrome (445767544).

The spelling of 100235543 in words is "one hundred million, two hundred thirty-five thousand, five hundred forty-three".