100242142 has 96 divisors (see below), whose sum is σ = 215115264. Its totient is φ = 34372800.

The previous prime is 100242113. The next prime is 100242143. The reversal of 100242142 is 241242001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100242143) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 322167 + ... + 322477.

It is an arithmetic number, because the mean of its divisors is an integer number (2240784).

Almost surely, 2^100242142 is an apocalyptic number.

100242142 is an abundant number, since it is smaller than the sum of its proper divisors (114873122).

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

100242142 is a wasteful number, since it uses less digits than its factorization.

100242142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374 (or 367 counting only the distinct ones).

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

The square root of 100242142 is about 10012.0997797665. The cubic root of 100242142 is about 464.5332225806.

Adding to 100242142 its reverse (241242001), we get a palindrome (341484143).

It can be divided in two parts, 100 and 242142, that added together give a palindrome (242242).

The spelling of 100242142 in words is "one hundred million, two hundred forty-two thousand, one hundred forty-two".