108228649 has 2 divisors, whose sum is σ = 108228650. Its totient is φ = 108228648.

The previous prime is 108228619. The next prime is 108228677. The reversal of 108228649 is 946822801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59675625 + 48553024 = 7725^2 + 6968^2 .

It is a cyclic number.

It is not a de Polignac number, because 108228649 - 2¹³ = 108220457 is a prime.

It is not a weakly prime, because it can be changed into another prime (108228619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54114324 + 54114325.

It is an arithmetic number, because the mean of its divisors is an integer number (54114325).

Almost surely, 2^108228649 is an apocalyptic number.

It is an amenable number.

108228649 is a deficient number, since it is larger than the sum of its proper divisors (1).

108228649 is an equidigital number, since it uses as much as digits as its factorization.

108228649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 108228649 is about 10403.2999091634. The cubic root of 108228649 is about 476.5561506111.

The spelling of 108228649 in words is "one hundred eight million, two hundred twenty-eight thousand, six hundred forty-nine".