100439803 has 2 divisors, whose sum is σ = 100439804. Its totient is φ = 100439802.

The previous prime is 100439761. The next prime is 100439819. The reversal of 100439803 is 308934001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100439803 - 2⁹ = 100439291 is a prime.

It is not a weakly prime, because it can be changed into another prime (100439203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50219901 + 50219902.

It is an arithmetic number, because the mean of its divisors is an integer number (50219902).

Almost surely, 2^100439803 is an apocalyptic number.

100439803 is a deficient number, since it is larger than the sum of its proper divisors (1).

100439803 is an equidigital number, since it uses as much as digits as its factorization.

100439803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 100439803 is about 10021.9660246880. The cubic root of 100439803 is about 464.8383497927.

The spelling of 100439803 in words is "one hundred million, four hundred thirty-nine thousand, eight hundred three".