140868163 has 2 divisors, whose sum is σ = 140868164. Its totient is φ = 140868162.

The previous prime is 140868157. The next prime is 140868187. The reversal of 140868163 is 361868041.

It is a weak prime.

It is an emirp because it is prime and its reverse (361868041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140868163 - 2⁵ = 140868131 is a prime.

It is not a weakly prime, because it can be changed into another prime (140868113) 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, 70434081 + 70434082.

It is an arithmetic number, because the mean of its divisors is an integer number (70434082).

Almost surely, 2^140868163 is an apocalyptic number.

140868163 is a deficient number, since it is larger than the sum of its proper divisors (1).

140868163 is an equidigital number, since it uses as much as digits as its factorization.

140868163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 140868163 is about 11868.7894496448. The cubic root of 140868163 is about 520.3205161579.

The spelling of 140868163 in words is "one hundred forty million, eight hundred sixty-eight thousand, one hundred sixty-three".