42360161 has 2 divisors, whose sum is σ = 42360162. Its totient is φ = 42360160.

The previous prime is 42360151. The next prime is 42360179. The reversal of 42360161 is 16106324.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35760400 + 6599761 = 5980^2 + 2569^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42360161 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (42360151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21180080 + 21180081.

It is an arithmetic number, because the mean of its divisors is an integer number (21180081).

Almost surely, 2^42360161 is an apocalyptic number.

It is an amenable number.

42360161 is a deficient number, since it is larger than the sum of its proper divisors (1).

42360161 is an equidigital number, since it uses as much as digits as its factorization.

42360161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 42360161 is about 6508.4684066223. The cubic root of 42360161 is about 348.5934324597.

Adding to 42360161 its reverse (16106324), we get a palindrome (58466485).

The spelling of 42360161 in words is "forty-two million, three hundred sixty thousand, one hundred sixty-one".