42611071 has 4 divisors (see below), whose sum is σ = 42789600. Its totient is φ = 42432544.

The previous prime is 42611069. The next prime is 42611083. The reversal of 42611071 is 17011624.

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 42611071 - 2¹ = 42611069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42611011) 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, 88906 + ... + 89383.

It is an arithmetic number, because the mean of its divisors is an integer number (10697400).

Almost surely, 2^42611071 is an apocalyptic number.

42611071 is a deficient number, since it is larger than the sum of its proper divisors (178529).

42611071 is a wasteful number, since it uses less digits than its factorization.

42611071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178528.

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

The square root of 42611071 is about 6527.7156034864. The cubic root of 42611071 is about 349.2803471496.

Adding to 42611071 its reverse (17011624), we get a palindrome (59622695).

The spelling of 42611071 in words is "forty-two million, six hundred eleven thousand, seventy-one".