100144424 has 16 divisors (see below), whose sum is σ = 194246100. Its totient is φ = 48345472.

The previous prime is 100144411. The next prime is 100144481. The reversal of 100144424 is 424441001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 99640324 + 504100 = 9982^2 + 710^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100144396 and 100144405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215597 + ... + 216060.

Almost surely, 2^100144424 is an apocalyptic number.

It is an amenable number.

100144424 is a deficient number, since it is larger than the sum of its proper divisors (94101676).

100144424 is a wasteful number, since it uses less digits than its factorization.

100144424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431692 (or 431688 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 100144424 is about 10007.2185945946. The cubic root of 100144424 is about 464.3822281498.

Adding to 100144424 its reverse (424441001), we get a palindrome (524585425).

The spelling of 100144424 in words is "one hundred million, one hundred forty-four thousand, four hundred twenty-four".