42056141 has 4 divisors (see below), whose sum is σ = 42070332. Its totient is φ = 42041952.

The previous prime is 42056093. The next prime is 42056143. The reversal of 42056141 is 14165024.

42056141 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, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 21353641 + 20702500 = 4621^2 + 4550^2 .

It is a cyclic number.

It is not a de Polignac number, because 42056141 - 2¹⁴ = 42039757 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 (42056143) 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, 770 + ... + 9203.

It is an arithmetic number, because the mean of its divisors is an integer number (10517583).

Almost surely, 2^42056141 is an apocalyptic number.

It is an amenable number.

42056141 is a deficient number, since it is larger than the sum of its proper divisors (14191).

42056141 is an equidigital number, since it uses as much as digits as its factorization.

42056141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14190.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 42056141 is about 6485.0706241336. The cubic root of 42056141 is about 347.7574745884.

The spelling of 42056141 in words is "forty-two million, fifty-six thousand, one hundred forty-one".