109463209 has 2 divisors, whose sum is σ = 109463210. Its totient is φ = 109463208.

The previous prime is 109463203. The next prime is 109463243. The reversal of 109463209 is 902364901.

It is an a-pointer prime, because the next prime (109463243) can be obtained adding 109463209 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101606400 + 7856809 = 10080^2 + 2803^2 .

It is an emirp because it is prime and its reverse (902364901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109463209 - 2⁵ = 109463177 is a prime.

It is not a weakly prime, because it can be changed into another prime (109463203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54731604 + 54731605.

It is an arithmetic number, because the mean of its divisors is an integer number (54731605).

Almost surely, 2^109463209 is an apocalyptic number.

It is an amenable number.

109463209 is a deficient number, since it is larger than the sum of its proper divisors (1).

109463209 is an equidigital number, since it uses as much as digits as its factorization.

109463209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 109463209 is about 10462.4666785610. The cubic root of 109463209 is about 478.3613232403.

The spelling of 109463209 in words is "one hundred nine million, four hundred sixty-three thousand, two hundred nine".