109606909 has 2 divisors, whose sum is σ = 109606910. Its totient is φ = 109606908.

The previous prime is 109606897. The next prime is 109606919. The reversal of 109606909 is 909606901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64850809 + 44756100 = 8053^2 + 6690^2 .

It is a cyclic number.

It is not a de Polignac number, because 109606909 - 2⁷ = 109606781 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109606919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54803454 + 54803455.

It is an arithmetic number, because the mean of its divisors is an integer number (54803455).

Almost surely, 2^109606909 is an apocalyptic number.

It is an amenable number.

109606909 is a deficient number, since it is larger than the sum of its proper divisors (1).

109606909 is an equidigital number, since it uses as much as digits as its factorization.

109606909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 40.

The square root of 109606909 is about 10469.3318315927. The cubic root of 109606909 is about 478.5705578149.

The spelling of 109606909 in words is "one hundred nine million, six hundred six thousand, nine hundred nine".