61008163 has 2 divisors, whose sum is σ = 61008164. Its totient is φ = 61008162.

The previous prime is 61008161. The next prime is 61008169. The reversal of 61008163 is 36180016.

61008163 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 is a cyclic number.

It is not a de Polignac number, because 61008163 - 2¹ = 61008161 is a prime.

Together with 61008161, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (61008161) 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, 30504081 + 30504082.

It is an arithmetic number, because the mean of its divisors is an integer number (30504082).

Almost surely, 2^61008163 is an apocalyptic number.

61008163 is a deficient number, since it is larger than the sum of its proper divisors (1).

61008163 is an equidigital number, since it uses as much as digits as its factorization.

61008163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 61008163 is about 7810.7722409503. The cubic root of 61008163 is about 393.6672768858.

Adding to 61008163 its reverse (36180016), we get a palindrome (97188179).

The spelling of 61008163 in words is "sixty-one million, eight thousand, one hundred sixty-three".