42111142 has 16 divisors (see below), whose sum is σ = 67550112. Its totient is φ = 19619200.

The previous prime is 42111131. The next prime is 42111211. The reversal of 42111142 is 24111124.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2698 + ... + 9565.

It is an arithmetic number, because the mean of its divisors is an integer number (4221882).

Almost surely, 2^42111142 is an apocalyptic number.

42111142 is a deficient number, since it is larger than the sum of its proper divisors (25438970).

42111142 is a wasteful number, since it uses less digits than its factorization.

42111142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12383.

The product of its digits is 64, while the sum is 16.

The square root of 42111142 is about 6489.3098246270. The cubic root of 42111142 is about 347.9090075660.

Adding to 42111142 its reverse (24111124), we get a palindrome (66222266).

The spelling of 42111142 in words is "forty-two million, one hundred eleven thousand, one hundred forty-two".