109209259 has 2 divisors, whose sum is σ = 109209260. Its totient is φ = 109209258.

The previous prime is 109209257. The next prime is 109209277. The reversal of 109209259 is 952902901.

It is a weak prime.

It is an emirp because it is prime and its reverse (952902901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109209259 - 2¹ = 109209257 is a prime.

Together with 109209257, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (109209251) 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, 54604629 + 54604630.

It is an arithmetic number, because the mean of its divisors is an integer number (54604630).

Almost surely, 2^109209259 is an apocalyptic number.

109209259 is a deficient number, since it is larger than the sum of its proper divisors (1).

109209259 is an equidigital number, since it uses as much as digits as its factorization.

109209259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 109209259 is about 10450.3233921252. The cubic root of 109209259 is about 477.9911108096.

The spelling of 109209259 in words is "one hundred nine million, two hundred nine thousand, two hundred fifty-nine".