42421063 has 2 divisors, whose sum is σ = 42421064. Its totient is φ = 42421062.

The previous prime is 42421037. The next prime is 42421073. The reversal of 42421063 is 36012424.

It is a happy number.

42421063 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42421063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42421003) 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, 21210531 + 21210532.

It is an arithmetic number, because the mean of its divisors is an integer number (21210532).

Almost surely, 2^42421063 is an apocalyptic number.

42421063 is a deficient number, since it is larger than the sum of its proper divisors (1).

42421063 is an equidigital number, since it uses as much as digits as its factorization.

42421063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 42421063 is about 6513.1453998817. The cubic root of 42421063 is about 348.7604122395.

Adding to 42421063 its reverse (36012424), we get a palindrome (78433487).

The spelling of 42421063 in words is "forty-two million, four hundred twenty-one thousand, sixty-three".