100443439 has 2 divisors, whose sum is σ = 100443440. Its totient is φ = 100443438.

The previous prime is 100443407. The next prime is 100443451. The reversal of 100443439 is 934344001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100443439 - 2⁵ = 100443407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100443479) 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, 50221719 + 50221720.

It is an arithmetic number, because the mean of its divisors is an integer number (50221720).

Almost surely, 2^100443439 is an apocalyptic number.

100443439 is a deficient number, since it is larger than the sum of its proper divisors (1).

100443439 is an equidigital number, since it uses as much as digits as its factorization.

100443439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 100443439 is about 10022.1474245792. The cubic root of 100443439 is about 464.8439588965.

The spelling of 100443439 in words is "one hundred million, four hundred forty-three thousand, four hundred thirty-nine".