68142163 has 2 divisors, whose sum is σ = 68142164. Its totient is φ = 68142162.

The previous prime is 68142157. The next prime is 68142167. The reversal of 68142163 is 36124186.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68142163 - 2⁹ = 68141651 is a prime.

It is not a weakly prime, because it can be changed into another prime (68142167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34071081 + 34071082.

It is an arithmetic number, because the mean of its divisors is an integer number (34071082).

Almost surely, 2^68142163 is an apocalyptic number.

68142163 is a deficient number, since it is larger than the sum of its proper divisors (1).

68142163 is an equidigital number, since it uses as much as digits as its factorization.

68142163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 31.

The square root of 68142163 is about 8254.8266486947. The cubic root of 68142163 is about 408.4497535412.

The spelling of 68142163 in words is "sixty-eight million, one hundred forty-two thousand, one hundred sixty-three".