42735171 has 4 divisors (see below), whose sum is σ = 56980232. Its totient is φ = 28490112.

The previous prime is 42735169. The next prime is 42735179. The reversal of 42735171 is 17153724.

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

It is not a de Polignac number, because 42735171 - 2¹ = 42735169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42735179) 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, 7122526 + ... + 7122531.

It is an arithmetic number, because the mean of its divisors is an integer number (14245058).

Almost surely, 2^42735171 is an apocalyptic number.

42735171 is a deficient number, since it is larger than the sum of its proper divisors (14245061).

42735171 is a wasteful number, since it uses less digits than its factorization.

42735171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14245060.

The product of its digits is 5880, while the sum is 30.

The square root of 42735171 is about 6537.2143149816. The cubic root of 42735171 is about 349.6190985443.

Adding to 42735171 its reverse (17153724), we get a palindrome (59888895).

The spelling of 42735171 in words is "forty-two million, seven hundred thirty-five thousand, one hundred seventy-one".