42427061 has 2 divisors, whose sum is σ = 42427062. Its totient is φ = 42427060.

The previous prime is 42427043. The next prime is 42427067. The reversal of 42427061 is 16072424.

42427061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42172036 + 255025 = 6494^2 + 505^2 .

It is a cyclic number.

It is not a de Polignac number, because 42427061 - 2¹⁸ = 42164917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42427061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42427067) 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 as a sum of consecutive naturals, namely, 21213530 + 21213531.

It is an arithmetic number, because the mean of its divisors is an integer number (21213531).

Almost surely, 2^42427061 is an apocalyptic number.

It is an amenable number.

42427061 is a deficient number, since it is larger than the sum of its proper divisors (1).

42427061 is an equidigital number, since it uses as much as digits as its factorization.

42427061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 42427061 is about 6513.6058370153. The cubic root of 42427061 is about 348.7768487785.

Adding to 42427061 its reverse (16072424), we get a palindrome (58499485).

The spelling of 42427061 in words is "forty-two million, four hundred twenty-seven thousand, sixty-one".