108854891 has 2 divisors, whose sum is σ = 108854892. Its totient is φ = 108854890.

The previous prime is 108854881. The next prime is 108854909. The reversal of 108854891 is 198458801.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108854891 is a prime.

It is not a weakly prime, because it can be changed into another prime (108854831) 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, 54427445 + 54427446.

It is an arithmetic number, because the mean of its divisors is an integer number (54427446).

Almost surely, 2^108854891 is an apocalyptic number.

108854891 is a deficient number, since it is larger than the sum of its proper divisors (1).

108854891 is an equidigital number, since it uses as much as digits as its factorization.

108854891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 44.

The square root of 108854891 is about 10433.3547337374. The cubic root of 108854891 is about 477.4735469570.

The spelling of 108854891 in words is "one hundred eight million, eight hundred fifty-four thousand, eight hundred ninety-one".