109777841 has 2 divisors, whose sum is σ = 109777842. Its totient is φ = 109777840.

The previous prime is 109777817. The next prime is 109777883. The reversal of 109777841 is 148777901.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103632400 + 6145441 = 10180^2 + 2479^2 .

It is an emirp because it is prime and its reverse (148777901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109777841 - 2⁶ = 109777777 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 109777792 and 109777801.

It is not a weakly prime, because it can be changed into another prime (109770841) 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, 54888920 + 54888921.

It is an arithmetic number, because the mean of its divisors is an integer number (54888921).

Almost surely, 2^109777841 is an apocalyptic number.

It is an amenable number.

109777841 is a deficient number, since it is larger than the sum of its proper divisors (1).

109777841 is an equidigital number, since it uses as much as digits as its factorization.

109777841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98784, while the sum is 44.

The square root of 109777841 is about 10477.4921140510. The cubic root of 109777841 is about 478.8192055695.

The spelling of 109777841 in words is "one hundred nine million, seven hundred seventy-seven thousand, eight hundred forty-one".