42234109 has 2 divisors, whose sum is σ = 42234110. Its totient is φ = 42234108.

The previous prime is 42234107. The next prime is 42234113. The reversal of 42234109 is 90143224.

42234109 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 can be written as a sum of positive squares in only one way, i.e., 41641209 + 592900 = 6453^2 + 770^2 .

It is a cyclic number.

It is not a de Polignac number, because 42234109 - 2¹ = 42234107 is a prime.

Together with 42234107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42234107) 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, 21117054 + 21117055.

It is an arithmetic number, because the mean of its divisors is an integer number (21117055).

Almost surely, 2^42234109 is an apocalyptic number.

It is an amenable number.

42234109 is a deficient number, since it is larger than the sum of its proper divisors (1).

42234109 is an equidigital number, since it uses as much as digits as its factorization.

42234109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 42234109 is about 6498.7775004227. Note that the first 3 decimals coincide. The cubic root of 42234109 is about 348.2473167086.

The spelling of 42234109 in words is "forty-two million, two hundred thirty-four thousand, one hundred nine".