42611 has 2 divisors, whose sum is σ = 42612.
Its totient is φ = 42610.
The previous prime is 42589. The next prime is 42641. The reversal of 42611 is 11624.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 42611 - 214 = 26227 is a prime.
It is a Sophie Germain prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (42641) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21305 + 21306.
It is an arithmetic number, because the mean of its divisors is an integer number (21306).
242611 is an apocalyptic number.
42611 is a deficient number, since it is larger than the sum of its proper divisors (1).
42611 is an equidigital number, since it uses as much as digits as its factorization.
42611 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 48, while the sum is 14.
The square root of 42611 is about 206.4243202726.
The cubic root of 42611 is about 34.9280153155.
The spelling of 42611 in words is "forty-two thousand, six hundred eleven".