101108489 has 2 divisors, whose sum is σ = 101108490. Its totient is φ = 101108488.

The previous prime is 101108479. The next prime is 101108507. The reversal of 101108489 is 984801101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78943225 + 22165264 = 8885^2 + 4708^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101108489 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (101108429) 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, 50554244 + 50554245.

It is an arithmetic number, because the mean of its divisors is an integer number (50554245).

Almost surely, 2^101108489 is an apocalyptic number.

It is an amenable number.

101108489 is a deficient number, since it is larger than the sum of its proper divisors (1).

101108489 is an equidigital number, since it uses as much as digits as its factorization.

101108489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 32.

The square root of 101108489 is about 10055.2717019482. The cubic root of 101108489 is about 465.8676351083.

The spelling of 101108489 in words is "one hundred one million, one hundred eight thousand, four hundred eighty-nine".