108866213 has 2 divisors, whose sum is σ = 108866214. Its totient is φ = 108866212.

The previous prime is 108866179. The next prime is 108866279. The reversal of 108866213 is 312668801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83484769 + 25381444 = 9137^2 + 5038^2 .

It is an emirp because it is prime and its reverse (312668801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 108866213 - 2¹⁰ = 108865189 is a prime.

It is a super-2 number, since 2×108866213² = 23703704665922738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108866413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54433106 + 54433107.

It is an arithmetic number, because the mean of its divisors is an integer number (54433107).

Almost surely, 2^108866213 is an apocalyptic number.

It is an amenable number.

108866213 is a deficient number, since it is larger than the sum of its proper divisors (1).

108866213 is an equidigital number, since it uses as much as digits as its factorization.

108866213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 108866213 is about 10433.8973063760. The cubic root of 108866213 is about 477.4901003951.

The spelling of 108866213 in words is "one hundred eight million, eight hundred sixty-six thousand, two hundred thirteen".