42236317 has 2 divisors, whose sum is σ = 42236318. Its totient is φ = 42236316.

The previous prime is 42236309. The next prime is 42236371. The reversal of 42236317 is 71363224.

42236317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (42236371) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41293476 + 942841 = 6426^2 + 971^2 .

It is a cyclic number.

It is not a de Polignac number, because 42236317 - 2³ = 42236309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42236017) 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, 21118158 + 21118159.

It is an arithmetic number, because the mean of its divisors is an integer number (21118159).

Almost surely, 2^42236317 is an apocalyptic number.

It is an amenable number.

42236317 is a deficient number, since it is larger than the sum of its proper divisors (1).

42236317 is an equidigital number, since it uses as much as digits as its factorization.

42236317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 28.

The square root of 42236317 is about 6498.9473763064. The cubic root of 42236317 is about 348.2533853949.

The spelling of 42236317 in words is "forty-two million, two hundred thirty-six thousand, three hundred seventeen".