100143244 has 24 divisors (see below), whose sum is σ = 178214400. Its totient is φ = 49230480.

The previous prime is 100143233. The next prime is 100143247. The reversal of 100143244 is 442341001.

It is not an unprimeable number, because it can be changed into a prime (100143247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97767 + ... + 98785.

It is an arithmetic number, because the mean of its divisors is an integer number (7425600).

Almost surely, 2^100143244 is an apocalyptic number.

It is an amenable number.

100143244 is a deficient number, since it is larger than the sum of its proper divisors (78071156).

100143244 is a wasteful number, since it uses less digits than its factorization.

100143244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413 (or 1411 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 100143244 is about 10007.1596369799. The cubic root of 100143244 is about 464.3804042068.

Adding to 100143244 its reverse (442341001), we get a palindrome (542484245).

The spelling of 100143244 in words is "one hundred million, one hundred forty-three thousand, two hundred forty-four".