42017141 has 2 divisors, whose sum is σ = 42017142. Its totient is φ = 42017140.

The previous prime is 42017137. The next prime is 42017153. The reversal of 42017141 is 14171024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39627025 + 2390116 = 6295^2 + 1546^2 .

It is a cyclic number.

It is not a de Polignac number, because 42017141 - 2² = 42017137 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42017191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21008570 + 21008571.

It is an arithmetic number, because the mean of its divisors is an integer number (21008571).

Almost surely, 2^42017141 is an apocalyptic number.

It is an amenable number.

42017141 is a deficient number, since it is larger than the sum of its proper divisors (1).

42017141 is an equidigital number, since it uses as much as digits as its factorization.

42017141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 42017141 is about 6482.0630203663. The cubic root of 42017141 is about 347.6499458132.

Adding to 42017141 its reverse (14171024), we get a palindrome (56188165).

The spelling of 42017141 in words is "forty-two million, seventeen thousand, one hundred forty-one".