100043142 has 16 divisors (see below), whose sum is σ = 202828080. Its totient is φ = 32890752.

The previous prime is 100043131. The next prime is 100043149. The reversal of 100043142 is 241340001.

It is a super-2 number, since 2×100043142² = 20017260522464328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100043149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113767 + ... + 114642.

It is an arithmetic number, because the mean of its divisors is an integer number (12676755).

Almost surely, 2^100043142 is an apocalyptic number.

100043142 is an abundant number, since it is smaller than the sum of its proper divisors (102784938).

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

100043142 is a wasteful number, since it uses less digits than its factorization.

100043142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228487.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 100043142 is about 10002.1568673962. The cubic root of 100043142 is about 464.2256229064.

Adding to 100043142 its reverse (241340001), we get a palindrome (341383143).

The spelling of 100043142 in words is "one hundred million, forty-three thousand, one hundred forty-two".