42316517 has 2 divisors, whose sum is σ = 42316518. Its totient is φ = 42316516.

The previous prime is 42316513. The next prime is 42316529. The reversal of 42316517 is 71561324.

42316517 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., 25391521 + 16924996 = 5039^2 + 4114^2 .

It is a cyclic number.

It is not a de Polignac number, because 42316517 - 2² = 42316513 is a prime.

It is a super-2 number, since 2×42316517² = 3581375222022578, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42316517.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42316513) 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, 21158258 + 21158259.

It is an arithmetic number, because the mean of its divisors is an integer number (21158259).

Almost surely, 2^42316517 is an apocalyptic number.

It is an amenable number.

42316517 is a deficient number, since it is larger than the sum of its proper divisors (1).

42316517 is an equidigital number, since it uses as much as digits as its factorization.

42316517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 42316517 is about 6505.1146800037. The cubic root of 42316517 is about 348.4736718211.

The spelling of 42316517 in words is "forty-two million, three hundred sixteen thousand, five hundred seventeen".