109345871 has 2 divisors, whose sum is σ = 109345872. Its totient is φ = 109345870.

The previous prime is 109345867. The next prime is 109345877. The reversal of 109345871 is 178543901.

It is a weak prime.

It is an emirp because it is prime and its reverse (178543901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109345871 - 2² = 109345867 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109345877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54672935 + 54672936.

It is an arithmetic number, because the mean of its divisors is an integer number (54672936).

Almost surely, 2^109345871 is an apocalyptic number.

109345871 is a deficient number, since it is larger than the sum of its proper divisors (1).

109345871 is an equidigital number, since it uses as much as digits as its factorization.

109345871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 109345871 is about 10456.8576063749. The cubic root of 109345871 is about 478.1903372399.

It can be divided in two parts, 1093 and 45871, that added together give a palindrome (46964).

The spelling of 109345871 in words is "one hundred nine million, three hundred forty-five thousand, eight hundred seventy-one".