100143984 has 40 divisors (see below), whose sum is σ = 272323840. Its totient is φ = 31624128.

The previous prime is 100143983. The next prime is 100143997. The reversal of 100143984 is 489341001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100143983) 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 7 ways as a sum of consecutive naturals, for example, 53992 + ... + 55815.

It is an arithmetic number, because the mean of its divisors is an integer number (6808096).

Almost surely, 2^100143984 is an apocalyptic number.

It is an amenable number.

100143984 is an abundant number, since it is smaller than the sum of its proper divisors (172179856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100143984 is a wasteful number, since it uses less digits than its factorization.

100143984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109837 (or 109831 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 100143984 is about 10007.1966104399. The cubic root of 100143984 is about 464.3815480372.

Adding to 100143984 its reverse (489341001), we get a palindrome (589484985).

The spelling of 100143984 in words is "one hundred million, one hundred forty-three thousand, nine hundred eighty-four".