100441609 has 2 divisors, whose sum is σ = 100441610. Its totient is φ = 100441608.

The previous prime is 100441589. The next prime is 100441613. The reversal of 100441609 is 906144001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100400400 + 41209 = 10020^2 + 203^2 .

It is a cyclic number.

It is not a de Polignac number, because 100441609 - 2⁵ = 100441577 is a prime.

It is not a weakly prime, because it can be changed into another prime (100441669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50220804 + 50220805.

It is an arithmetic number, because the mean of its divisors is an integer number (50220805).

Almost surely, 2^100441609 is an apocalyptic number.

It is an amenable number.

100441609 is a deficient number, since it is larger than the sum of its proper divisors (1).

100441609 is an equidigital number, since it uses as much as digits as its factorization.

100441609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 100441609 is about 10022.0561263645. The cubic root of 100441609 is about 464.8411358496.

The spelling of 100441609 in words is "one hundred million, four hundred forty-one thousand, six hundred nine".