42060247 has 2 divisors, whose sum is σ = 42060248. Its totient is φ = 42060246.

The previous prime is 42060229. The next prime is 42060251. The reversal of 42060247 is 74206024.

42060247 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-42060247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42060047) 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, 21030123 + 21030124.

It is an arithmetic number, because the mean of its divisors is an integer number (21030124).

Almost surely, 2^42060247 is an apocalyptic number.

42060247 is a deficient number, since it is larger than the sum of its proper divisors (1).

42060247 is an equidigital number, since it uses as much as digits as its factorization.

42060247 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 25.

The square root of 42060247 is about 6485.3871896750. The cubic root of 42060247 is about 347.7687915701.

The spelling of 42060247 in words is "forty-two million, sixty thousand, two hundred forty-seven".