43142111 has 16 divisors (see below), whose sum is σ = 47351040. Its totient is φ = 39191040.

The previous prime is 43142087. The next prime is 43142119. The reversal of 43142111 is 11124134.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 43142111 - 2²² = 38947807 is a prime.

It is a super-2 number, since 2×43142111² = 3722483483072642, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43142111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43142119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32615 + ... + 33911.

It is an arithmetic number, because the mean of its divisors is an integer number (2959440).

Almost surely, 2^43142111 is an apocalyptic number.

43142111 is a deficient number, since it is larger than the sum of its proper divisors (4208929).

43142111 is a wasteful number, since it uses less digits than its factorization.

43142111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394.

The product of its digits is 96, while the sum is 17.

The square root of 43142111 is about 6568.2654483509. The cubic root of 43142111 is about 350.7253284679.

Adding to 43142111 its reverse (11124134), we get a palindrome (54266245).

The spelling of 43142111 in words is "forty-three million, one hundred forty-two thousand, one hundred eleven".