100144433 has 4 divisors (see below), whose sum is σ = 106035300. Its totient is φ = 94253568.

The previous prime is 100144411. The next prime is 100144481. The reversal of 100144433 is 334441001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59783824 + 40360609 = 7732^2 + 6353^2 .

It is a cyclic number.

It is not a de Polignac number, because 100144433 - 2¹⁶ = 100078897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100144633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2945408 + ... + 2945441.

It is an arithmetic number, because the mean of its divisors is an integer number (26508825).

Almost surely, 2^100144433 is an apocalyptic number.

It is an amenable number.

100144433 is a deficient number, since it is larger than the sum of its proper divisors (5890867).

100144433 is an equidigital number, since it uses as much as digits as its factorization.

100144433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5890866.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 100144433 is about 10007.2190442700. The cubic root of 100144433 is about 464.3822420612.

Adding to 100144433 its reverse (334441001), we get a palindrome (434585434).

The spelling of 100144433 in words is "one hundred million, one hundred forty-four thousand, four hundred thirty-three".