42315073 has 2 divisors, whose sum is σ = 42315074. Its totient is φ = 42315072.

The previous prime is 42315067. The next prime is 42315079. The reversal of 42315073 is 37051324.

It is a balanced prime because it is at equal distance from previous prime (42315067) and next prime (42315079).

It can be written as a sum of positive squares in only one way, i.e., 36204289 + 6110784 = 6017^2 + 2472^2 .

It is a cyclic number.

It is not a de Polignac number, because 42315073 - 2⁹ = 42314561 is a prime.

It is not a weakly prime, because it can be changed into another prime (42315079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21157536 + 21157537.

It is an arithmetic number, because the mean of its divisors is an integer number (21157537).

Almost surely, 2^42315073 is an apocalyptic number.

It is an amenable number.

42315073 is a deficient number, since it is larger than the sum of its proper divisors (1).

42315073 is an equidigital number, since it uses as much as digits as its factorization.

42315073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 42315073 is about 6505.0036894686. The cubic root of 42315073 is about 348.4697080284.

Adding to 42315073 its reverse (37051324), we get a palindrome (79366397).

The spelling of 42315073 in words is "forty-two million, three hundred fifteen thousand, seventy-three".