68100187 has 2 divisors, whose sum is σ = 68100188. Its totient is φ = 68100186.

The previous prime is 68100169. The next prime is 68100191. The reversal of 68100187 is 78100186.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68100187 - 2¹⁹ = 67575899 is a prime.

It is not a weakly prime, because it can be changed into another prime (68100127) 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, 34050093 + 34050094.

It is an arithmetic number, because the mean of its divisors is an integer number (34050094).

Almost surely, 2^68100187 is an apocalyptic number.

68100187 is a deficient number, since it is larger than the sum of its proper divisors (1).

68100187 is an equidigital number, since it uses as much as digits as its factorization.

68100187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 68100187 is about 8252.2837445158. The cubic root of 68100187 is about 408.3658671103.

Subtracting 68100187 from its reverse (78100186), we obtain a palindrome (9999999).

The spelling of 68100187 in words is "sixty-eight million, one hundred thousand, one hundred eighty-seven".