42316543 has 2 divisors, whose sum is σ = 42316544. Its totient is φ = 42316542.

The previous prime is 42316531. The next prime is 42316577. The reversal of 42316543 is 34561324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42316543 - 2¹⁷ = 42185471 is a prime.

It is a super-2 number, since 2×42316543² = 3581379622941698, which contains 22 as substring.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 21158271 + 21158272.

It is an arithmetic number, because the mean of its divisors is an integer number (21158272).

Almost surely, 2^42316543 is an apocalyptic number.

42316543 is a deficient number, since it is larger than the sum of its proper divisors (1).

42316543 is an equidigital number, since it uses as much as digits as its factorization.

42316543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 28.

The square root of 42316543 is about 6505.1166784309. The cubic root of 42316543 is about 348.4737431905.

Adding to 42316543 its reverse (34561324), we get a palindrome (76877867).

The spelling of 42316543 in words is "forty-two million, three hundred sixteen thousand, five hundred forty-three".