42123142 has 8 divisors (see below), whose sum is σ = 63228600. Its totient is φ = 21046944.

The previous prime is 42123121. The next prime is 42123149. The reversal of 42123142 is 24132124.

42123142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42123149) 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 3 ways as a sum of consecutive naturals, for example, 3267 + ... + 9742.

It is an arithmetic number, because the mean of its divisors is an integer number (7903575).

Almost surely, 2^42123142 is an apocalyptic number.

42123142 is a deficient number, since it is larger than the sum of its proper divisors (21105458).

42123142 is a wasteful number, since it uses less digits than its factorization.

42123142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14630.

The product of its digits is 384, while the sum is 19.

The square root of 42123142 is about 6490.2343563234. The cubic root of 42123142 is about 347.9420511692.

Adding to 42123142 its reverse (24132124), we get a palindrome (66255266).

The spelling of 42123142 in words is "forty-two million, one hundred twenty-three thousand, one hundred forty-two".