42757135 has 4 divisors (see below), whose sum is σ = 51308568. Its totient is φ = 34205704.

The previous prime is 42757133. The next prime is 42757151. The reversal of 42757135 is 53175724.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42757135 - 2¹ = 42757133 is a prime.

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 42757135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42757133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4275709 + ... + 4275718.

It is an arithmetic number, because the mean of its divisors is an integer number (12827142).

Almost surely, 2^42757135 is an apocalyptic number.

42757135 is a deficient number, since it is larger than the sum of its proper divisors (8551433).

42757135 is an equidigital number, since it uses as much as digits as its factorization.

42757135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8551432.

The product of its digits is 29400, while the sum is 34.

The square root of 42757135 is about 6538.8940196336. The cubic root of 42757135 is about 349.6789845704.

The spelling of 42757135 in words is "forty-two million, seven hundred fifty-seven thousand, one hundred thirty-five".