42043135 has 8 divisors (see below), whose sum is σ = 50506560. Its totient is φ = 33597984.

The previous prime is 42043117. The next prime is 42043139. The reversal of 42043135 is 53134024.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42043135 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42043139) 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, 1149 + ... + 9241.

It is an arithmetic number, because the mean of its divisors is an integer number (6313320).

Almost surely, 2^42043135 is an apocalyptic number.

42043135 is a deficient number, since it is larger than the sum of its proper divisors (8463425).

42043135 is a wasteful number, since it uses less digits than its factorization.

42043135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9137.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 42043135 is about 6484.0677818789. The cubic root of 42043135 is about 347.7216225113.

Adding to 42043135 its reverse (53134024), we get a palindrome (95177159).

The spelling of 42043135 in words is "forty-two million, forty-three thousand, one hundred thirty-five".