108216187 has 2 divisors, whose sum is σ = 108216188. Its totient is φ = 108216186.

The previous prime is 108216109. The next prime is 108216217. The reversal of 108216187 is 781612801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 108216187 - 2¹⁵ = 108183419 is a prime.

It is not a weakly prime, because it can be changed into another prime (108216107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54108093 + 54108094.

It is an arithmetic number, because the mean of its divisors is an integer number (54108094).

Almost surely, 2^108216187 is an apocalyptic number.

108216187 is a deficient number, since it is larger than the sum of its proper divisors (1).

108216187 is an equidigital number, since it uses as much as digits as its factorization.

108216187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 34.

The square root of 108216187 is about 10402.7009473502. The cubic root of 108216187 is about 476.5378588718.

Adding to 108216187 its reverse (781612801), we get a palindrome (889828988).

The spelling of 108216187 in words is "one hundred eight million, two hundred sixteen thousand, one hundred eighty-seven".