299197109 has 2 divisors, whose sum is σ = 299197110. Its totient is φ = 299197108.

The previous prime is 299197081. The next prime is 299197111. The reversal of 299197109 is 901791992.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 298944100 + 253009 = 17290^2 + 503^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-299197109 is a prime.

Together with 299197111, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (299197609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149598554 + 149598555.

It is an arithmetic number, because the mean of its divisors is an integer number (149598555).

Almost surely, 2^299197109 is an apocalyptic number.

It is an amenable number.

299197109 is a deficient number, since it is larger than the sum of its proper divisors (1).

299197109 is an equidigital number, since it uses as much as digits as its factorization.

299197109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91854, while the sum is 47.

The square root of 299197109 is about 17297.3150806708. The cubic root of 299197109 is about 668.8352146456.

The spelling of 299197109 in words is "two hundred ninety-nine million, one hundred ninety-seven thousand, one hundred nine".