100044142 has 32 divisors (see below), whose sum is σ = 170333280. Its totient is φ = 43653120.

The previous prime is 100044137. The next prime is 100044157. The reversal of 100044142 is 241440001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148318 + ... + 148990.

It is an arithmetic number, because the mean of its divisors is an integer number (5322915).

Almost surely, 2^100044142 is an apocalyptic number.

100044142 is a deficient number, since it is larger than the sum of its proper divisors (70289138).

100044142 is a wasteful number, since it uses less digits than its factorization.

100044142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 100044142 is about 10002.2068564892. The cubic root of 100044142 is about 464.2271696527.

Adding to 100044142 its reverse (241440001), we get a palindrome (341484143).

The spelling of 100044142 in words is "one hundred million, forty-four thousand, one hundred forty-two".