42061171 has 4 divisors (see below), whose sum is σ = 42854832. Its totient is φ = 41267512.

The previous prime is 42061169. The next prime is 42061177. The reversal of 42061171 is 17116024.

42061171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42061171 - 2¹ = 42061169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42061177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396751 + ... + 396856.

It is an arithmetic number, because the mean of its divisors is an integer number (10713708).

Almost surely, 2^42061171 is an apocalyptic number.

42061171 is a deficient number, since it is larger than the sum of its proper divisors (793661).

42061171 is an equidigital number, since it uses as much as digits as its factorization.

42061171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793660.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 42061171 is about 6485.4584263566. The cubic root of 42061171 is about 347.7713382028.

Adding to 42061171 its reverse (17116024), we get a palindrome (59177195).

The spelling of 42061171 in words is "forty-two million, sixty-one thousand, one hundred seventy-one".