42122027 has 2 divisors, whose sum is σ = 42122028. Its totient is φ = 42122026.

The previous prime is 42122023. The next prime is 42122051. The reversal of 42122027 is 72022124.

It is a happy number.

42122027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42122027 - 2² = 42122023 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42122023) 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, 21061013 + 21061014.

It is an arithmetic number, because the mean of its divisors is an integer number (21061014).

Almost surely, 2^42122027 is an apocalyptic number.

42122027 is a deficient number, since it is larger than the sum of its proper divisors (1).

42122027 is an equidigital number, since it uses as much as digits as its factorization.

42122027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 42122027 is about 6490.1484574700. The cubic root of 42122027 is about 347.9389811322.

The spelling of 42122027 in words is "forty-two million, one hundred twenty-two thousand, twenty-seven".