100144443 has 8 divisors (see below), whose sum is σ = 152601088. Its totient is φ = 57225384.

The previous prime is 100144411. The next prime is 100144481. The reversal of 100144443 is 344441001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100144443 - 2⁵ = 100144411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 4768783 = 100144443 / (1 + 0 + 0 + 1 + 4 + 4 + 4 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100144243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2384371 + ... + 2384412.

It is an arithmetic number, because the mean of its divisors is an integer number (19075136).

Almost surely, 2^100144443 is an apocalyptic number.

100144443 is a deficient number, since it is larger than the sum of its proper divisors (52456645).

100144443 is an equidigital number, since it uses as much as digits as its factorization.

100144443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4768793.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 100144443 is about 10007.2195439093. The cubic root of 100144443 is about 464.3822575183.

Adding to 100144443 its reverse (344441001), we get a palindrome (444585444).

The spelling of 100144443 in words is "one hundred million, one hundred forty-four thousand, four hundred forty-three".