100144447 has 4 divisors (see below), whose sum is σ = 107847880. Its totient is φ = 92441016.

The previous prime is 100144411. The next prime is 100144481. The reversal of 100144447 is 744441001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 744441001 = 1171 ⋅635731.

It is a cyclic number.

It is not a de Polignac number, because 100144447 - 2¹⁹ = 99620159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100144487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3851697 + ... + 3851722.

It is an arithmetic number, because the mean of its divisors is an integer number (26961970).

Almost surely, 2^100144447 is an apocalyptic number.

100144447 is a deficient number, since it is larger than the sum of its proper divisors (7703433).

100144447 is an equidigital number, since it uses as much as digits as its factorization.

100144447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7703432.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 100144447 is about 10007.2197437650. The cubic root of 100144447 is about 464.3822637011.

Adding to 100144447 its reverse (744441001), we get a palindrome (844585448).

The spelling of 100144447 in words is "one hundred million, one hundred forty-four thousand, four hundred forty-seven".